* insert date and time via menu
* search always in all accounts
* edit and sort when search is active
* receive shared images
* convert selection to HTML-Code
* convert selection to text
* simplify sync interval selection
* read multipart messages
* update to appcompat 1.6.1
* add html formatting pre
* upgrade to gradle 8.0
* use io.github.eltos:simpledialogfragments
* use SimpleColorDialog to select text- and background color in editor
* add dialog for table dimensions
* add dialog for insert link
* add dialog for insert image
* lots of bug fixes