Prepare release notes

Added:

- Follow tags (dedicated entry in menu)

- Reduce the list of languages when composing (Settings > Compose)

- Language indicator when composing

- Reply are automatically set to first language message

- Two new Light themes

- More moderation features

- List name can be edited

Fixed:

- Filter not working

- Crash with trends

- Some content lost when sending messages (mentions)

- Some other fixes

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