* [XYZ-45] New permissions implementation
* Changing mattermost-redux branch in packages.json
* Changed yarn.lock file to point to advanced-permissions-phase-1
* MM-9620: Add reactions permissions (#1451)
* Fixing some code styles warnings
* Fix mobile app to use latest Mattermost redux
* Some merge errors fixed
* Long post support
* Fix upload preview
* Add MaxPostSize validation
* Fix show more button container
* localization
* feedback review
* UI feedback review
* Upgrade mattermost-redux
* Fix long post attachment list
* update eslint's `comma-dangle` rule to `always-multiline`
* add check and fix scripts to package.json
* Invoke `yarn fix` to adopt the updated eslint rules. No other changes are included.