Fix send email bug for 4.1.2+

Fix a few broken things

* Revamp AboutFragment

* Remove unused import

* Add newline at EOF

* Call duplicate method openUserFragment from overload

* Add newline at EOF (1)

* Add newline at EOF (2)

Prevent text overflow for large font size

Fix infinite scrolling, big image for single event

Check if the item being displayed is the progress bar in getItemId

Add Insti app badge in README.md

Fix Id, animation in profile

Add shared element animations

Change notifications to sheet, add animations to recyclerviews

Fix feed being selected on activity resume

Fix data not showing on popping back stack

Fade transition only on theme change (fix #240)

Settings icons color change black -> gray