Fix Git editor reword workflow and UI coverage

- show Git editor file paths instead of the submitted git command
- surface follow-up commit message editors during interactive rebase reword
- add rename-commit UI tests for editor and amend-message solution paths
- add broader embedded level solution scenarios for alternate Git workflows

app/src/main/java/solutions/tretter/githugandroid/levels/ConfigLevel.kt

@@ -18,5 +18,6 @@ internal fun configLevel(): Level = level(
     testCases = listOf(
         levelTestCase("name then email", "git config user.name GitHug", "git config user.email githug@example.com"),
         levelTestCase("email then name", "git config user.email githug@example.com", "git config user.name GitHug"),
+        levelTestCase("explicit local config", "git config --local user.name GitHug", "git config --local user.email githug@example.com"),
     ),
 )