* Adjust cancel button for chat delete/leave dialog
Show the Cancel button for both 1-to-1 chats
and channels. Also use the "normal" cancel
button type instead, otherwise both confirm and
cancel dialog actions are buttons in red color.
* Ask for confirmation before clearing chat history
Also move the context menu action to the
bottom section along with delete/leave chat,
since both are irreversible operations.
* Adjustments to chat context menu
- To show the vertical section separator if either
"clear history" or "delete/leave" destructive actions are
enabled.
- Show either the "clear history" or the "delete/leave"
actions in red, but not both at the same time.
- Renamed main `CommunitiesPortal` folder to `Communities`.
- Created new `layouts` folder.
- Moved layout files from chat to communities.
- Created new `helpers` folder.
- Moved helpers files from chat to communities.
- Moved `controls/community` files from chat to communities `controls`.
- Moved `panels/communities` files from chat to communities `panels`.
- Moved `popups/community` files from chat to communities `popups`.
- Moved `views/community` files from chat to communities `views`.
- Moved `CommunityBanner` file from shared to `Communities/controls`. Only used in communities context.
- Moved `CommunitySettingsView` and `CommunityColumnView` files from chat to communities `views`.
- Moved `PermissionsStore.qml` file to `shared/stores`.
- Updated imports.
- Updated storybook.
Part of #6204