feat: detect more firefox variants

[boredsquirrel]

detects Fedora Firefox, and Librewolf in 2 different formats

one may be redundant but with the current logic (blocking creation when not found) should be harmless

fixes #130

[igo95862]

Hello @boredsquirrel

There is an issue with a Firefox variants that they want to acquire a unique D-Bus name.

For example, Librewolf wants to acquire io.gitlab.firefox.*: #107 (comment)

However, the firefox profile only allows acquiring org.mozilla.* names.

[boredsquirrel]

Okay, I so will probably just open PRs for Librewolf, Vivaldi and Brave?

I am not sure how scaleable this is, when things are not grouped together at all.

But the d-bus argument makes sense. So a UI change (in the future) is probably a better approach.