[BUG] repoPaths are case sensitive

[Sanix-Darker]

Describe the bug
The repoName should lower down along side withthe given path
because TheAuthor/repo1 seems not equal to Theauthor/repo1,
which is not true because those two redirect to the same project
on github.

To Reproduce
Steps to reproduce the behavior:

1. Just set a repo name in the repoPath section with MAJ or MIN, dash will crash when you try to run a custom command saying the path for the given repo is not available.

Expected behavior
Should not crash an resolve the repo(path and name) even with upper or lower cases + more details on the error maybe ?

	if !ok {
		return func() tea.Msg {
			return constants.ErrMsg{Err: fmt.Errorf(
				"Failed to find local path for repo %s from path: '%s'",
				repoName, repoPath,
			)}
		}
	}

gh-dash/ui/modelUtils.go

Line 112 in 555c5d9

if !ok {

Screenshots

Desktop (please complete the following information):

• Not Os related