Crushee: äldre versioner att ladda ner

- Progress of the current activity is now reflected in the taskbar/dock.
- File list has been virtualized to dramatically improve performance when working with a large number of files.
- Added frosted glass effect to sidebar on MacOS.
- Changed context menus to sentence case.
- Optimized functionality and files.
- Downgraded imagemin-advpng to improve compatibility with older versions of MacOS.

- The context menu on files now includes a "Show Original" option to display the file in your file browser.
- You can now resize images by percentages of the original dimensions.
- A badge is shown on the dock icon to indicate progress of the current activity. (MacOS only)
- The UI updates now throttle a bit when doing heavy work to keep the rest of the UI responsive.
- Cropping images works again.
Whoops!
- Fixed white splash screen.
- Fixed unmaximizing behavior on Windows.

- An all-new look!
- Animations and a new layout have been implemented to (hopefully) make the _add->crush->save_ workflow clearer for users.
- Unfortunately, dark mode is gone for now.
It'll be back, I promise!
- Crushee starts up way, way faster.
- Crushing is now faster, too!
- Crushing algorithms have been tweaked to better balance quality vs size.
- New optimization libraries have been implemented to better shave off bytes.
- GIFs and SVGs can now be optimized.
The color count on GIFs can be altered when crushed.
- You can now convert files to PNG.
- PNGs now resize.
I knew something didn't seem right with those file sizes...
- Crushing large numbers of files no longer locks up the app.
I've tested with up to 20k files and it still worked, though a bit slowly.
- Crushed JPEGs weren't always readable on Windows.
Now they are.
- Status messages should no longer get stuck.
So if you're seeing a message for a while, it's actually crunching numbers.
- Everything is more stable in general.
Especially on Mac.

- Added top menu bar for easy access to new/common actions (add/save/remove/re-crush files)
- Added bottom status bar to better identify progress of current activity
- Added startup splash screen
- Added option to remove unoptimized files (larger file size instead of smaller)
- Added version number to new menus
- Added "New version available" message
- Fixed "after" background on transparent images
- Fixed miscalculated file size totals
- Improved startup/shutdown process
- Updated text throughout the app for better accuracy

- Files no longer need to "upload", leading to faster processing.
- Fixed file type conversions saving with the wrong extension.
- Startup is now 76.3% more reliable.

- Significantly faster and more reliable file transfers/recrushing on multiple files.
- Deleted files are better handled by the client and server
- Server component no longer accepts external connections for improved security.
- Optimized JPEG compression speed.
- Fixed "Overwrite Originals" not displaying.