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.

apps/frontend/src/locales/pl-PL/index.json

@@ -1478,9 +1478,6 @@
   "dashboard.collections.sort.recently-updated": {
     "message": "Ostatnio zaktualizowane"
   },
-  "dashboard.creator-tax-form-modal.close-button": {
-    "message": "Zamknij"
-  },
   "dashboard.creator-tax-form-modal.confirmation.download-button": {
     "message": "Pobierz {formType}"
   },
@@ -2975,9 +2972,6 @@
   "modpack-scan-modal.delete-all-groups-confirmation.description": {
     "message": "Trwale usunie to wszystkie grupy atrybucji i wszystkie zawarte w nich pliki. Tej akcji nie można cofnąć."
   },
-  "modpack-scan-modal.delete-all-groups.proceed": {
-    "message": "Wyczyść"
-  },
   "modpack-scan-modal.failed": {
     "message": "Błąd"
   },
@@ -3014,9 +3008,6 @@
   "modpack-scan-modal.scanning": {
     "message": "Skanowanie..."
   },
-  "modpack-scan-modal.success": {
-    "message": "Sukces"
-  },
   "modpack-scan-modal.title": {
     "message": "Skanowanie paczki modów ({scanned}/{total} plików)"
   },