Quick Picture Viewer

#### Changes:
- Updated translations
- QuickLibrary v2.5.8
- Combine Save & Save As buttons
- Show checkerboard background on Cut action (Ctrl+X)

#### Added:
- Croatian language
- Installer: Context menu checkboxes
- PiP: Add 1:1 button

#### Fixed:
- Application not opening (#26)
- Auto-zoom is enabled after enabling always on top
- In-app notifications anchored to the PicturePanel
- Always on top mode for update dialog (#64)
- Fix: Installation text in Chinese (#66)
- Fix: Dragging image if any context menu is opened
- Selection tool: Right-click not working
- Wrong format of saved images
- Blank screen when trying to save a file with the doubled extension (.png.svg etc)
- Some issues related to the file extension names (lower/upper case)
- Cr2 memory leak
- You can open just one CR2 file per all app instances