Prevent double clicks on accept/reject buttons

[pakal]

08-24 17:14:40.781 23286 23319 I python  : 2023-08-24 15:14:40,780Z - DEBUG - Starting new HTTPS connection (1): api.witnessangel.com:443
08-24 17:14:41.404 23286 26540 I python  : 2023-08-24 15:14:41,404Z - DEBUG - https://api.witnessangel.com:443 "POST /gateway/jsonrpc/ HTTP/1.1" 200 52965
08-24 17:14:41.542 23286 23319 I python  : 2023-08-24 15:14:41,541Z - DEBUG - https://api.witnessangel.com:443 "POST /gateway/jsonrpc/ HTTP/1.1" 200 420
08-24 17:14:41.577 23286 23319 I python  : 2023-08-24 15:14:41,561Z - ERROR - Caught unhandled exception in call of function <function AuthenticatorRevelationRequestDetailScreen.accept_revelation_request at 0x6df63f9480>: ValidationError('Cannot accept a revelation request in status ACCEPTED')
08-24 17:14:41.577 23286 23319 I python  : Traceback (most recent call last):
08-24 17:14:41.577 23286 23319 I python  :   File "/home/osboxes/.buildozer_files_authenticator/android/app/wacryptolib/jsonrpc_client.py", line 70, in parse_response
08-24 17:14:41.577 23286 23319 I python  :   File "/home/osboxes/.buildozer_files_authenticator/android/platform/build-armeabi-v7a_arm64-v8a_x86_x86_64/build/python-installs/authenticator/arm64-v8a/jsonrpc_requests/jsonrpc.py", line 78, in parse_response
08-24 17:14:41.577 23286 23319 I python  : jsonrpc_requests.jsonrpc.ProtocolError: Error: 400 Error: Server-side exception occurred, see error data for details
08-24 17:14:41.577 23286 23319 I python  :
08-24 17:14:41.577 23286 23319 I python  : The above exception was the direct cause of the following exception:
08-24 17:14:41.577 23286 23319 I python  :
08-24 17:14:41.577 23286 23319 I python  : Traceback (most recent call last):
08-24 17:14:41.577 23286 23319 I python  :   File "/home/osboxes/.buildozer_files_authenticator/android/app/wacomponents/logging/handlers.py", line 29, in safe_catch_unhandled_exception
08-24 17:14:41.577 23286 23319 I python  :   File "/home/osboxes/.buildozer_files_authenticator/android/platform/build-armeabi-v7a_arm64-v8a_x86_x86_64/build/python-installs/authenticator/arm64-v8a/decorator.py", line 232, in fun
08-24 17:14:41.577 23286 23319 I python  :   File "/home/osboxes/.buildozer_files_authenticator/android/app/wacomponents/widgets/popups.py", line 45, in display_snackbar_on_error
08-24 17:14:41.577 23286 23319 I python  :   File "/home/osboxes/.buildozer_files_authenticator/android/app/wacomponents/screens/authenticator_revelation_request_detail.py", line 238, in accept_revelation_request
08-24 17:14:41.577 23286 23319 I python  :   File "/home/osboxes/.buildozer_files_authenticator/android/platform/build-armeabi-v7a_arm64-v8a_x86_x86_64/build/python-installs/authenticator/arm64-v8a/jsonrpc_requests/jsonrpc.py", line 130, in __call__
08-24 17:14:41.577 23286 23319 I python  :   File "/home/osboxes/.buildozer_files_authenticator/android/app/wacryptolib/jsonrpc_client.py", line 91, in _Server__request
08-24 17:14:41.577 23286 23319 I python  :   File "/home/osboxes/.buildozer_files_authenticator/android/platform/build-armeabi-v7a_arm64-v8a_x86_x86_64/build/python-installs/authenticator/arm64-v8a/jsonrpc_requests/jsonrpc.py", line 62, in send_request
08-24 17:14:41.577 23286 23319 I python  :   File "/home/osboxes/.buildozer_files_authenticator/android/app/wacryptolib/jsonrpc_client.py", line 73, in parse_response
08-24 17:14:41.577 23286 23319 I python  :   File "/home/osboxes/.buildozer_files_authenticator/android/app/wacryptolib/jsonrpc_client.py", line 32, in status_slugs_response_error_handler
08-24 17:14:41.577 23286 23319 I python  : wacryptolib.exceptions.ValidationError: Cannot accept a revelation request in status ACCEPTED