Notecase Pro v4.8.3 desktop release

Notecase Pro v4.8.3 desktop has just been released.
Downloads are now available at https://www.notecasepro.com/download.php

This is a maintenance release, adding two new builds, and fixing some minor issues:
- add: "Store" button in file export dialog now remembers Markdown format flags as well
- add: add option to export color/background color/underline as HTML when exporting to Markdown format
  (non-standard extensions to .md format, supported by some tools)
- add: add option to skip adding note title as first line when exporting to Markdown format
- add: hidden option to export background color in Markdown as non-standard "highlight" extension
- perf: speedup note typing ~35%
- fix: removed "--dump_session" command line parameter
- fix: splitting notes may convert hyperlinks to plain text
- fix: restoring note's scrolling position on GTK3-related builds was imprecise
- new builds for Fedora 42 (beta) and Ubuntu 25.04 (pre-beta)

As previously announced, the following builds were removed: Fedora 38, Fedora 39, Ubuntu 18.04, Debian 11.

For detailed change list see help file or: https://www.notecasepro.com/history.php