Visuals:
- When iOS device has been linked, use iOS color scheme
- Conversation bubbles now better handle both large and small window sizes
- Quotes: Show warning if referenced message was not found
Performance:
- Give event loop a rest when queuing large numbers of messages from cache
- Fix issue which caused contact syncs to be continually reprocessed from cache
Dev:
- Add logging to help diagnose protocol handler false positives
- Only show 'upgrade is available' dialog if mainWindow is available
- Copy quoted message contents into quote on receipt
- Disable drag and drop if it's not a file attachment