%groups v9.2.0

This update adds automatic support for revoking outstanding group invitations when a group is deleted. It also adds the ability to set channel permissions during creation, restores image support in Notebook posts, improves Activity tab performance, and improves notification preference descriptions. We also fixed multiple UI issues.

• Adds support for revoking invites when a group is deleted
• Adds explainer text to app-level notification level preferences
• Adds description text for individual groups, DMs, and channels to reflect their app-set or overridden notification level preferences
• Restores the "Copy group ID" button to the quick actions row of the group settings & info screen
• Adds a prominent "Invite" button to the quick actions row of the group settings & info screen
• Restores support for adding images to Notebook posts
• Adds the capability to define permissions while creating a channel
• Improves the performance of the Activity tab on long-running ships
• Removes notifications for %groups activity in Landscape
• Removes base64-encoded images in channel and DM history
• Fixes an issue where old Lure links would not reflect updated metadata on landing pages
• Fixes an issue where hosted ships would occasionally fetch webpage metadata in French
• Fixes an issue where clicking a notification that someone is requesting entry to a private group could lead nowhere
• Fixes an issue where the Chat scroller would not stay pinned to the bottom of the screen
• Fixes an issue where leaving multiple channels would cause them to stick in the sidebar