[MM-22206] Add PATCH channel moderations (PUT /moderations/patch) (#13845)

* MM-22205 Add get channel moderations endpoint

* MM-22206 Add patch channel moderations endpoint

Add api tests for patch channel moderations

* MM-22205 Ensure ordered permissions returned and create struct ChannelModeratedRoles

* MM-22206 Use structs instead of map

* MM-22206 Add test cases for GetChannelModeratedPermissions

* MM-22206 Add tests for ChannelModeratedPermissionsChangedByPatch

* MM-22206 Use NewBool instead of defining booleans

* MM-22206 Tie Channel Mentions to Create Posts when building Channel Moderations

* Revert "MM-22206 Tie Channel Mentions to Create Posts when building Channel Moderations"

This reverts commit a0bfc95f1732955c5ef5fc3e4b05ea8ab954acea.

* MM-22206 Review changes

Modify GetSchemeRolesForChannel to return named variables
Change calls to SessionHasPermissionToChannel to SessionHasPermissionTo
Add a CreateChannelScheme method
Add a DeleteChannelScheme method
Move GetChannelModeratedPermissions to Role model

* Fix lint

* Add ChannelModeration methods to App interface

* MM-22206 Rename method to GetTeamSchemeChannelRoles

* MM-22206 Check CHANNEL_MODERATED_PERMISSIONS_MAP for existing permission before iterating through it

* Modify wording to higherScoped to match #13813

* MM-22206 Delete channel scheme between tests

* MM-22206 Fix tests

* Actually patch role

* MM-22206 Shadow declaration of err

model/client4.go

@@ -4912,3 +4912,22 @@ func (c *Client4) PatchConfig(config *Config) (*Config, *Response) {
 	defer closeBody(r)
 	return ConfigFromJson(r.Body), BuildResponse(r)
 }
+
+func (c *Client4) GetChannelModerations(channelID string, etag string) ([]*ChannelModeration, *Response) {
+	r, err := c.DoApiGet(c.GetChannelRoute(channelID)+"/moderations", etag)
+	if err != nil {
+		return nil, BuildErrorResponse(r, err)
+	}
+	defer closeBody(r)
+	return ChannelModerationsFromJson(r.Body), BuildResponse(r)
+}
+
+func (c *Client4) PatchChannelModerations(channelID string, patch []*ChannelModerationPatch) ([]*ChannelModeration, *Response) {
+	payload, _ := json.Marshal(patch)
+	r, err := c.DoApiPut(c.GetChannelRoute(channelID)+"/moderations/patch", string(payload))
+	if err != nil {
+		return nil, BuildErrorResponse(r, err)
+	}
+	defer closeBody(r)
+	return ChannelModerationsFromJson(r.Body), BuildResponse(r)
+}