Clean up a few lint warnings

src/components/footer/conference/footer.scss

@@ -35,7 +35,7 @@
 
             .intel {
                 img {
-                    max-height: 50px
+                    max-height: 50px;
                 }
             }
         }

src/components/login/login.scss

@@ -7,11 +7,11 @@
         padding-top: 5px;
         font-weight: bold;
     }
-    
+
     .right {
         float: right;
     }
-    
+
     .spinner {
         margin: 0 .8rem;
         width: 1rem;

src/main.scss

@@ -164,7 +164,7 @@ dl {
     dt {
         font-weight: 700;
     }
-    
+
     dd {
         margin: 0;
     }