Dynamic dark mode fixup

Changelog

• fixed an error that caused the acrylic sidebar to be in the wrong color when the Windows theme was toggled

Electron 16 and some fixes

Changelog

• fixed signing in to Apple Music (details below)
• upgraded electron to v16.0.3 (using the castlabs/electron-releases version)
• conducted a mass upgrade of other dependencies (mainly dev ones, but also electron-acrylic-window)
• implemented electron-context-menu for easier debugging if something goes wrong
• added a fix for Set-Cookie header, which is now needed to successfully sign in to Apple Music
• a small refactor of header manipulation technique
• changed the method of loading the injected CSS - now it's stored in a .css file, which makes it dramatically easier to edit
• updated the UA to match the one from the latest Microsoft Edge (96.0.1054.34)
• implemented some minor drag-zone fixes
• removed the obsolete transparent: true option from BrowserWindow
• removed border from the window, which is no longer needed due to rounded corners

Minor bug fixes

Changelog

• Darkmode border is now less irritating
• minWidth of the window is now bigger to avoid problems with layout breakpoints

First working release

Changelog

As it's the first release, I can't really publish a changelog.
Thanks for your interest in this project!