Parent ticket: https://phabricator.wikimedia.org/T297630
We would like to add an entry point to the talk page in the app, shown as below:
Please add the bubble icon (as the same icon as the talk page icon), expose the talk page bubble aligned right on LtR, and aligned left on RtL.
The color of the button can be the same as the edit buttons.
The size of the icon should be at least 48px*48px
Please make a method of controlling the visibility of the button, e.g.: setTalkPageButton(isVisible)
Please also make sure to post message by using the postMessage(): example.