Improvements to interactive hard wrap behavior (#26953)

Release Notes:

- Fixed involuntary joining of lines when typing in the commit message
editor
- Fixed being unable to type whitespace after a comment character at the
start of a line in the commit message editor

crates/editor/src/test/editor_lsp_test_context.rs

@@ -79,6 +79,19 @@ pub(crate) fn rust_lang() -> Arc<Language> {
     .expect("Could not parse queries");
     Arc::new(language)
 }
+
+#[cfg(test)]
+pub(crate) fn git_commit_lang() -> Arc<Language> {
+    Arc::new(Language::new(
+        LanguageConfig {
+            name: "Git Commit".into(),
+            line_comments: vec!["#".into()],
+            ..Default::default()
+        },
+        None,
+    ))
+}
+
 impl EditorLspTestContext {
     pub async fn new(
         language: Language,