Add more accepted file extensions to file input

[futpib]

It's annoying that when uploading files some file types do not show up initially and you have to change the file type filter in the system file picker dialog each time to select .AppImage for example.

I took all file extensions from here:

electron-release-server/assets/js/core/data/data-service.js

Lines 36 to 41 in 042567b

	windows_64: ['.exe', '.msi'],
	windows_32: ['.exe', '.msi'],
	osx_64: ['.dmg', '.pkg', '.mas'],
	osx_arm64: ['.dmg', '.pkg', '.mas'],
	linux_64: ['.deb', '.gz', '.rpm', '.AppImage'],
	linux_32: ['.deb', '.gz', '.rpm', '.AppImage']