feat: Add the ability to clear library (#2997)

* Add the ability to clear libraries

* Update 'libraries' to 'library'

* Update en.json

src/locales/en.json

@@ -117,6 +117,7 @@
     "edit": "Edit",
     "undo": "Undo",
     "redo": "Redo",
+    "resetLibrary": "Reset library",
     "createNewRoom": "Create new room",
     "fullScreen": "Full screen",
     "darkMode": "Dark mode",
@@ -139,7 +140,8 @@
     "errorLoadingLibrary": "There was an error loading the third party library.",
     "confirmAddLibrary": "This will add {{numShapes}} shape(s) to your library. Are you sure?",
     "imageDoesNotContainScene": "Importing images isn't supported at the moment.\n\nDid you want to import a scene? This image does not seem to contain any scene data. Have you enabled this during export?",
-    "cannotRestoreFromImage": "Scene couldn't be restored from this image file"
+    "cannotRestoreFromImage": "Scene couldn't be restored from this image file",
+    "resetLibrary": "This will clear your library. Are you sure?"
   },
   "toolBar": {
     "selection": "Selection",