refactor(i18n): use common messages for generic button labels (#7020)

A few components defined their own "Cancel", "Close", "Clear" and
"Success" descriptors when commonMessages already has them. Swapped
them over and removed the old ones.

Locale files come from intl:prune-local dropping the now-orphaned
strings across every language.

packages/ui/src/locales/fil-PH/index.json

@@ -341,9 +341,6 @@
   "external-project-license-status.yes": {
     "defaultMessage": "Oo"
   },
-  "files.editor.find-close": {
-    "defaultMessage": "Isara"
-  },
   "files.editor.find-in-file": {
     "defaultMessage": "Hahanapin"
   },
@@ -2766,4 +2763,3 @@
     "defaultMessage": "Uri"
   }
 }
-