Fixing WhatsNew Sheet for OpenSource

Fixing potential crash issues if data gets corrupted

Hardcoding the versionName / versionCode for FDroid

Updating version for release in FDroid

Adding undo/redo

Fixing image resize issue

Fixing markdown insert bug for launch

[NoteStateIcon] Note state icon in the home feed

[Bug] Fixing icon size for non-staggered layout

Merge branch 'master' of https://github.com/BijoySingh/Material-Notes…

…-Android-App