feat(conversations): add backend support of compact list

- int<0,1> was chosen if we further want to extend with other appearance types

Signed-off-by: Joas Schilling <coding@schilljs.com>
Signed-off-by: Maksim Sukharev <antreesy.web@gmail.com>

docs/capabilities.md

@@ -173,3 +173,4 @@
 * `call-notification-state-api` (local) - Whether the endpoints exists for checking if a call notification should be dismissed
 * `schedule-meeting` (local) - Whether logged-in participants can schedule meetings
 * `config => chat => has-translation-task-providers` (local) - When true, translations can be done using the [OCS TaskProcessing API](https://docs.nextcloud.com/server/latest/developer_manual/client_apis/OCS/ocs-taskprocessing-api.html).
+* `config => conversations => list-style` (local) - Whether conversation list should appear in certain way

docs/constants.md

@@ -51,6 +51,10 @@
 * `0` Everyone (default) - All participants can mention using `@all`
 * `1` Moderators - Only moderators can mention using `@all`
 
+### Conversation list style
+* `two-lines` Normal (default) - two-line elements (with display name and last message)
+* `compact` Compact - one-line elements (with display name)
+
 ## Participants
 
 ### Participant types

docs/settings.md

@@ -32,6 +32,7 @@ Instead, the server API `POST /ocs/v2.php/apps/provisioning_api/api/v1/config/us
 | `play_sounds`               |                                             | `'yes'`                                            | `'yes'` and `'no'`                                                                                       |
 | `calls_start_without_media` | `config => call => start-without-media`     | `''` falling back to app config with the same name | `'yes'` and `'no'`                                                                                       |
 | `blur_virtual_background`   | `config => call => blur-virtual-background` | `'no'`                                             | `'yes'` and `'no'`                                                                                       |
+| `conversations_list_style`  | `config => conversations => list-style`     | `'two-lines'`                                      | One of the constants from the [constants list](constants.md#conversation-list-style)                     |
 
 ## Set SIP settings