Log Message:
xournalpp: update to 1.2.5.

## 1.2.5

Bugfixes from various community contributors.

* Fixed a regression causing "Out of memory" error when exporting some \ 
PDF files on Windows (#6124)
* Fixed a regression causing a crash when exporting on Linux (#6084)
* Allow undo/redo for changes of page size (#6096)
* Add Ctrl+= as a shortcut for zomming in (#6076)
* Fixed a crash when importing some SVG images (#6087)
* Make the geometry tools appear in the middle of the view (#6012)
* Fixed labels in plugin manager (#5992)
* Fixed missing translations in Windows releases (#5973)
* Fixed many issues with Windows installer (#5988)
* Updated translations