Update conference schedule icons for consistency

from @carljbowman, to @carljbowman

static/svgs/conference/schedule/event-icon.svg

-<svg id="Layer_1" data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" width="13.01" height="13.24" viewBox="0 0 13.01 13.24"><title>event-icon</title><path d="M12.26,1a1.25,1.25,0,0,0-1.32.18,2.9,2.9,0,0,1-3.55,0A5.52,5.52,0,0,0,1.74.47,0.82,0.82,0,0,0,1,0H0.83A0.83,0.83,0,0,0,0,.83V12.41a0.83,0.83,0,0,0,.83.83H1a0.83,0.83,0,0,0,.83-0.83V9.19A0.85,0.85,0,0,0,2.35,9a2.85,2.85,0,0,1,3.41.09,5.35,5.35,0,0,0,6.8,0,1.27,1.27,0,0,0,.45-1v-6A1.26,1.26,0,0,0,12.26,1Zm-1,6.93A3.75,3.75,0,0,1,6.84,7.8a4.62,4.62,0,0,0-5-.46v-5a3.74,3.74,0,0,1,4.48.12,4.58,4.58,0,0,0,5,.46v5Z" fill="#929497"/></svg>
+<svg id="Layer_1" data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><title>conf</title><path d="M3.55,13.66a0.5,0.5,0,0,1-.5-0.5V9.41A0.5,0.5,0,0,1,3.25,9a4,4,0,0,1,4.81.12,3.84,3.84,0,0,0,4.7,0V3.79A4,4,0,0,1,8,3.67a3.81,3.81,0,0,0-4-.45,0.5,0.5,0,1,1-.45-0.89,4.83,4.83,0,0,1,5.13.57,3,3,0,0,0,3.72,0,0.9,0.9,0,0,1,.94-0.13,0.86,0.86,0,0,1,.53.8V9.23a0.86,0.86,0,0,1-.32.67,4.87,4.87,0,0,1-6,0,3,3,0,0,0-3.38-.23v3.49A0.5,0.5,0,0,1,3.55,13.66Zm9.39-10h0Z" fill="#929497"/><path d="M3.55,13.66a0.5,0.5,0,0,1-.5-0.5V1.78a0.5,0.5,0,0,1,1,0V13.16A0.5,0.5,0,0,1,3.55,13.66Z" fill="#929497"/></svg>
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static/svgs/conference/schedule/location-icon.svg

-<svg id="Layer_1" data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" width="13.46" height="19.12" viewBox="0 0 13.46 19.12"><defs><style>.cls-1{fill:#929497;}</style></defs><title>location-icon</title><path class="cls-1" d="M12,21.56a1.25,1.25,0,0,1-1.22-1,15.77,15.77,0,0,0-3.16-5.91A14.75,14.75,0,0,1,6.46,13,6.57,6.57,0,0,1,5.27,9.17a6.73,6.73,0,1,1,12.22,3.9,14,14,0,0,1-1.11,1.58,15.8,15.8,0,0,0-3.17,5.95A1.24,1.24,0,0,1,12,21.56ZM12,4.14a5,5,0,0,0-4.1,7.94A14.34,14.34,0,0,0,9,13.63a19.24,19.24,0,0,1,3,5.13,19.21,19.21,0,0,1,3-5.14,13.8,13.8,0,0,0,1-1.46,5.12,5.12,0,0,0,1-3A5,5,0,0,0,12,4.14Z" transform="translate(-5.27 -2.44)"/><path class="cls-1" d="M12,12.39a3,3,0,1,1,3-3A3,3,0,0,1,12,12.39Zm0-4.86a1.83,1.83,0,1,0,1.83,1.83A1.83,1.83,0,0,0,12,7.54Z" transform="translate(-5.27 -2.44)"/></svg>
+<svg id="Layer_1" data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><title>conf</title><path d="M8,14a0.5,0.5,0,0,1-.35-0.15L4.41,10.59a5.08,5.08,0,1,1,7.19,0L8.35,13.83A0.5,0.5,0,0,1,8,14ZM8,2.92a4.08,4.08,0,0,0-2.89,7L8,12.77l2.89-2.89A4.08,4.08,0,0,0,8,2.92Z" fill="#929497"/><path d="M8,9.23A2.23,2.23,0,1,1,10.23,7,2.23,2.23,0,0,1,8,9.23ZM8,5.77A1.23,1.23,0,1,0,9.23,7,1.23,1.23,0,0,0,8,5.77Z" fill="#929497"/></svg>
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static/svgs/conference/schedule/presenter-icon.svg

-<svg id="Layer_1" data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" width="15.45" height="19.32" viewBox="0 0 15.45 19.32"><defs><style>.cls-1{fill:#929497;}</style></defs><title>facilitator-icon</title><path class="cls-1" d="M16,10.13a4.91,4.91,0,1,0-8.9-2.87A4.86,4.86,0,0,0,8,10.13a8.92,8.92,0,0,0-3.75,7.44c0,1.35.95,2.49,2.67,3.22a13.65,13.65,0,0,0,5.06.87c3.84,0,7.72-1.26,7.72-4.09A8.94,8.94,0,0,0,16,10.13ZM12,4A3.21,3.21,0,0,1,14.08,9.7a3.29,3.29,0,0,1-3.53.41,2.61,2.61,0,0,1-.4-0.23L9.91,9.69A3.21,3.21,0,0,1,12,4ZM12,20c-3.38,0-6-1-6-2.39a7.15,7.15,0,0,1,3.3-6.23l0.06,0,0.25,0.15a4.53,4.53,0,0,0,1,.42L10.93,12a5.5,5.5,0,0,0,2.14,0L13.42,12a4.53,4.53,0,0,0,1-.42l0.25-.15,0.06,0A7.16,7.16,0,0,1,18,17.57C18,18.91,15.38,20,12,20Z" transform="translate(-4.27 -2.34)"/><path class="cls-1" d="M14.41,11.53a4.75,4.75,0,0,1-1,.42A4.53,4.53,0,0,0,14.41,11.53ZM10.93,12a4.47,4.47,0,0,0,2.14,0A5.5,5.5,0,0,1,10.93,12ZM10.58,12a4.75,4.75,0,0,1-1-.42A4.53,4.53,0,0,0,10.58,12Z" transform="translate(-4.27 -2.34)"/></svg>
+<svg id="Layer_1" data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><title>conf</title><path d="M8,14.53A11.14,11.14,0,0,1,4.3,14c-1.6-.59-1.93-1.45-1.93-2.06A5.57,5.57,0,0,1,3.7,8.27a0.5,0.5,0,1,1,.76.65,4.59,4.59,0,0,0-1.09,3c0,0.89,2.08,1.62,4.63,1.62s4.63-.73,4.63-1.62a4.59,4.59,0,0,0-1.09-3,0.5,0.5,0,1,1,.76-0.64,5.58,5.58,0,0,1,1.33,3.64C13.63,13.72,10.8,14.53,8,14.53Z" fill="#929497"/><path d="M8,8.81a3.55,3.55,0,1,1,3.55-3.55A3.55,3.55,0,0,1,8,8.81Zm0-6.1a2.55,2.55,0,1,0,2.55,2.55A2.55,2.55,0,0,0,8,2.71Z" fill="#929497"/></svg>
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static/svgs/conference/schedule/time-icon.svg

-<svg id="Layer_1" data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" width="13.12" height="13.12" viewBox="0 0 13.12 13.12"><defs><style>.cls-1{fill:#929497;}</style></defs><title>time-icon</title><path class="cls-1" d="M12,5.44A6.56,6.56,0,1,0,18.56,12,6.57,6.57,0,0,0,12,5.44Zm0,11.45A4.89,4.89,0,1,1,16.89,12,4.9,4.9,0,0,1,12,16.89Z" transform="translate(-5.44 -5.44)"/><path class="cls-1" d="M14.5,12a0.59,0.59,0,0,1-.59.6H12a0.6,0.6,0,0,1-.6-0.6V8.57a0.6,0.6,0,0,1,1.2,0V11.4h1.31A0.59,0.59,0,0,1,14.5,12Z" transform="translate(-5.44 -5.44)"/></svg>
+<svg id="Layer_1" data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><title>conf</title><path d="M8,14.41A6.41,6.41,0,1,1,14.41,8,6.41,6.41,0,0,1,8,14.41ZM8,2.59A5.41,5.41,0,1,0,13.41,8,5.41,5.41,0,0,0,8,2.59Z" fill="#929497"/><path d="M8,8.71a0.5,0.5,0,0,1-.5-0.5V5.29a0.5,0.5,0,1,1,1,0V8.21A0.5,0.5,0,0,1,8,8.71Z" fill="#929497"/><path d="M10,8.71H8a0.5,0.5,0,0,1,0-1h2A0.5,0.5,0,0,1,10,8.71Z" fill="#929497"/><circle cx="8" cy="3.69" r="0.5" fill="#929497"/><path d="M8,12.81a0.5,0.5,0,1,1,.5-0.5A0.5,0.5,0,0,1,8,12.81Zm0-.5H8Z" fill="#929497"/><path d="M5.84,4.77a0.5,0.5,0,0,1-.25-0.93A0.49,0.49,0,0,1,6,3.78a0.5,0.5,0,0,1,.3.23h0A0.5,0.5,0,0,1,5.84,4.77Z" fill="#929497"/><path d="M10.16,12.24l-0.13,0a0.5,0.5,0,0,1-.35-0.61,0.49,0.49,0,0,1,.23-0.3,0.5,0.5,0,0,1,.68.18h0a0.5,0.5,0,0,1-.18.68A0.5,0.5,0,0,1,10.16,12.24Z" fill="#929497"/><path d="M4.26,6.34A0.5,0.5,0,0,1,3.78,6a0.49,0.49,0,0,1,.05-0.38,0.5,0.5,0,0,1,.68-0.18h0a0.5,0.5,0,0,1-.12.92Zm0.13-.72-0.13.22Z" fill="#929497"/><path d="M11.73,10.66a0.49,0.49,0,0,1-.25-0.07,0.5,0.5,0,0,1-.18-0.68,0.49,0.49,0,0,1,.3-0.23,0.5,0.5,0,0,1,.38,0h0A0.5,0.5,0,0,1,11.73,10.66Z" fill="#929497"/><circle cx="3.69" cy="8" r="0.5" fill="#929497"/><circle cx="12.31" cy="8" r="0.5" fill="#929497"/><path d="M4.27,10.66a0.5,0.5,0,0,1-.43-0.25A0.5,0.5,0,0,1,4,9.72H4a0.5,0.5,0,0,1,.38,0,0.49,0.49,0,0,1,.3.23A0.5,0.5,0,0,1,4.27,10.66ZM4.14,9.94l0.12,0.22h0Z" fill="#929497"/><path d="M11.74,6.34l-0.13,0a0.5,0.5,0,0,1-.12-0.92h0a0.5,0.5,0,0,1,.68.18A0.5,0.5,0,0,1,11.74,6.34Zm-0.13-.72,0.13,0.22h0Z" fill="#929497"/><path d="M5.84,12.24a0.5,0.5,0,0,1-.25-0.07,0.5,0.5,0,0,1-.18-0.68h0a0.5,0.5,0,0,1,.68-0.18,0.5,0.5,0,0,1,.18.68,0.5,0.5,0,0,1-.31.23Z" fill="#929497"/><path d="M10.16,4.77A0.49,0.49,0,0,1,9.91,4.7,0.5,0.5,0,0,1,9.72,4h0a0.5,0.5,0,0,1,.68-0.18A0.5,0.5,0,0,1,10.16,4.77Z" fill="#929497"/></svg>
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