Extracted common methods (#281)

src/patches.py

@@ -58,6 +58,14 @@ class Patches(object):
         key: (value, "_" + value) for key, value in _revanced_app_ids.items()
     }
 
+    @staticmethod
+    def get_package_name(app: str) -> str:
+        """Get Package name from app name."""
+        for package, app_tuple in Patches.revanced_app_ids.items():
+            if app_tuple[0] == app:
+                return package
+        raise AppNotFound("App Not Found.")
+
     @staticmethod
     def support_app() -> Dict[str, str]:
         """Return supported apps."""