Release 0.3.0

New features:
- Add better-live module that improves user experience in live threads. The only feature so far is that allows to quote people by pressing their post number.
- Add wide-mode module. Removes the small column in the right and widens the main column.
- Add tagging system. Allows user to tag other users.

Bugs fixed:
- Better colors for dark theme.
- Bug in the settings panel that wouldn't allow to turn on some modules.
- Small fixes in the events system.