Server is in maintenance mode warning

[AndyXheli]

Currently if the Nextcloud server is in maintenance and when launching the Nextcloud Talk client get a popup "There was a problem lading your chats"

I think it would be best to have a pop stating that if the server is in maintenance mode. I would still keep that other message incase the server is not in maintenance mode and there was a problem loading chats

[mahibi]

I remember to have implemented this for the conversation list view. However this is only when already being logged in. I'm not sure how it behaves when trying to initially log in.

@sowjanyakch This could be a good first issue for you.

1. Setup nextcloud locally with docker and access it via android phone. https://github.com/juliushaertl/nextcloud-docker-dev

2. Enter the local docker instance via bash docker exec -it your_nextcloud_instance /bin/bash`

3. Execute occ command to set maintenance mode https://docs.nextcloud.com/server/latest/admin_manual/configuration_server/occ_command.html#maintenance-commands

4. check on web if maintenance mode screen occurs

5. check for android app if maintenance warning occurs for logged in user. (should already work) (search for the string nc_dialog_maintenance_mode)

6. check how it behaves when trying to initially log in with the android app while server if is in maintenance mode. Is there shown a meaningful warning? If not, you could try to implement it.