Failing to detect user Flatpak installs of VSCode and VSCodium

[pascalrrr]

The problem

When installing VSCodium or VSCode as a user installed Flatpak, neither installation appears as an available External Editor in the application. Could be related to #851 and #879.

It looks like an issue in

desktop/app/src/lib/editors/linux.ts

Lines 53 to 58 in 84aeb5d

	name: 'VSCodium',
	paths: [
	'/usr/bin/codium',
	'/var/lib/flatpak/app/com.vscodium.codium',
	'/usr/share/vscodium-bin/bin/codium',
	],

and

desktop/app/src/lib/editors/linux.ts

Lines 40 to 46 in 84aeb5d

	name: 'Visual Studio Code',
	paths: [
	'/usr/share/code/bin/code',
	'/snap/bin/code',
	'/usr/bin/code',
	'/mnt/c/Program Files/Microsoft VS Code/bin/code',
	],

and I will probably submit a PR to fix this.

Release version

Version 3.2.1-linux2 (x64) (Unofficial Flatpak)

Operating system

VanillaOS

Steps to reproduce the behavior

1. Install GitHub Desktop on Linux
2. Install VSCodium or VSCode as a user through Flatpak
3. ???
4. Profit

no wait
*3. Go to File > Integrations > No VSCode or VSCodium

Log files

No response

Screenshots

Additional context

I am running the (seemingly unofficial) Flatpak version of GitHub Desktop. I hate to direct issues here because the Flatpak could be introducing this issue, but I think this is an issue here as well. I haven't tried with a system install of GH Desktop Linux.

[shiftkey]

and I will probably submit a PR to fix this.

Please do - I only have a limited context on setups and tools that folks use, so these sort of contributions do help to fill in the gaps.

I hate to direct issues here because the Flatpak could be introducing this issue,

I believe this is the right place to submit the fix, so here is fine to report the issue.