Bump scratch-gui

Bumps [scratch-gui](https://github.com/LLK/scratch-gui) from 0.1.0-prerelease.20200528204019 to 0.1.0-prerelease.20200530204959.
- [Release notes](https://github.com/LLK/scratch-gui/releases)
- [Commits](https://github.com/LLK/scratch-gui/compare/0.1.0-prerelease.20200528204019...0.1.0-prerelease.20200530204959)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package-lock.json

@@ -16190,9 +16190,9 @@
       }
     },
     "scratch-gui": {
-      "version": "0.1.0-prerelease.20200528204019",
-      "resolved": "https://registry.npmjs.org/scratch-gui/-/scratch-gui-0.1.0-prerelease.20200528204019.tgz",
-      "integrity": "sha512-Qwgk6FDxWA+IsrkFv2i0+g0ReBkq7RJ6B1wb5JYcsBKXJf2FaNAUWKj11DJKADnKIafGZBiG/jW3aLyjtQ5KOA==",
+      "version": "0.1.0-prerelease.20200530204959",
+      "resolved": "https://registry.npmjs.org/scratch-gui/-/scratch-gui-0.1.0-prerelease.20200530204959.tgz",
+      "integrity": "sha512-VOd/Jjbx4h1Rkx2bmpnBv+J5UkG1ytQgQz/hSqWtRnLIacDSk1W0R74Qxl+QUNDSZRWqlZDv+n6uw7WR1+krxw==",
       "dev": true
     },
     "scratch-l10n": {

package.json

@@ -128,7 +128,7 @@
     "redux-mock-store": "^1.2.3",
     "redux-thunk": "2.0.1",
     "sass-loader": "6.0.6",
-    "scratch-gui": "0.1.0-prerelease.20200528204019",
+    "scratch-gui": "0.1.0-prerelease.20200530204959",
     "scratch-l10n": "latest",
     "selenium-webdriver": "3.6.0",
     "slick-carousel": "1.6.0",