Auto-move conversations to top of inbox when new messages arrive

Problem statement

• When a new message arrives in the unified inbox, the conversation stays in its current position instead of moving to the top
• This makes it easy to miss new messages since you don't know which conversations have new activity

Current workaround

• Manually checking each conversation to see if there are new messages

Impact

• Risk of missing guest messages
• Extra time spent checking conversations for new activity

Proposed solution

• When a new message arrives, automatically move that conversation to the top of the inbox

Unlock

• You'll always see the most recent conversations at the top, so you never miss a new message