[frontend] Custom Emoji Deletion (#994)

* re-add eslint

* fix oauth url getting too long

* actually attach single emoji get and delete routes

* basic emoji details + deletion using rtk query

* refactor emoji upload to rtk query

* clean up old redux api+reducers for custom emoji

* fix validation order

* refactor custom emoji form fields

* remove unused requires

* cleanup, fix most eslint errors

* more small eslint fixes

* fix max emoji size

* tiny bit of function documentation

web/source/index.js

@@ -66,6 +66,7 @@ skulk({
 			],
 		},
 		settings: {
+			debug: false,
 			entryFile: "settings",
 			outputFile: "settings.js",
 			prodCfg: prodCfg,