Add Remove Password UI into V2 (#4214)

# Description of Changes
- Add UI for Remove Password tool
- Fix more translation warnings that were being thrown in the console
- Add an encrypted PDF thumbnail and refactor thumbnail generation code

frontend/src/tools/AddPassword.tsx

@@ -95,6 +95,7 @@ const AddPassword = ({ onPreviewFile, onComplete, onError }: BaseToolProps) => {
             disabled={endpointLoading}
           />
         ),
+        tooltip: addPasswordPermissionsTips,
       },
     ],
     executeButton: {