Update Fomantic-UI to 2.8.6 and remove old workarounds (#11933)

Co-authored-by: zeripath <art27@cantab.net>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>

package.json

@@ -20,7 +20,7 @@
     "dropzone": "5.7.1",
     "fast-glob": "3.2.2",
     "file-loader": "6.0.0",
-    "fomantic-ui": "2.8.5",
+    "fomantic-ui": "2.8.6",
     "highlight.js": "10.0.3",
     "jquery": "3.5.1",
     "jquery.are-you-sure": "1.9.0",