Actualize plugin with various fixes
Actualize plugin with various fixes

* Fix bug that made the icon not change.

* Fix bug that made the button title not change sometimes.

* Fix internally confusingly named setting.

The "isMuted" setting actually represented the opposite of what it says -- the unmuted state. This patch fixes this by changing the behaviour to match the name.

* Fix bug that toggled mute/unmute on extension startup.

After this change, mute/unmute is only toggled on button clicks.

ykushch/mute-tabs