chore(i18l): Add all plurals to en locale

Also add translation status to README

README.md

@@ -45,4 +45,6 @@ flatpak build-bundle flatpak-repo org.selfprivacy.app.flatpak org.selfprivacy.ap
 
 ## Translations
 
+[![Translation status](http://weblate.selfprivacy.org/widgets/selfprivacy/-/selfprivacy-app/multi-auto.svg)](http://weblate.selfprivacy.org/engage/selfprivacy/)
+
 Translations are stored in `assets/translations/*.json` and can be edited on <https://weblate.selfprivacy.org/projects/selfprivacy/selfprivacy-app/>.

assets/translations/en.json

@@ -110,6 +110,9 @@
         "location": "Location",
         "core_count": {
             "one": "{} core",
+            "two": "{} cores",
+            "few": "{} cores",
+            "many": "{} cores",
             "other": "{} cores"
         }
     },