debugger/tasks: Remove TaskType enum (#29208)

Closes #ISSUE

Release Notes:

- N/A

---------

Co-authored-by: Cole Miller <m@cole-miller.net>
Co-authored-by: Anthony Eid <hello@anthonyeid.me>
Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
Co-authored-by: Anthony <anthony@zed.dev>
Co-authored-by: Conrad <conrad@zed.dev>

crates/debugger_ui/src/session.rs

@@ -33,7 +33,7 @@ impl DebugSessionState {
 pub struct DebugSession {
     remote_id: Option<workspace::ViewId>,
     mode: DebugSessionState,
-    label: OnceLock<String>,
+    label: OnceLock<SharedString>,
     dap_store: WeakEntity<DapStore>,
     _debug_panel: WeakEntity<DebugPanel>,
     _worktree_store: WeakEntity<WorktreeStore>,
@@ -110,9 +110,9 @@ impl DebugSession {
         }
     }
 
-    pub(crate) fn label(&self, cx: &App) -> String {
+    pub(crate) fn label(&self, cx: &App) -> SharedString {
         if let Some(label) = self.label.get() {
-            return label.to_owned();
+            return label.clone();
         }
 
         let session_id = match &self.mode {
@@ -123,7 +123,7 @@ impl DebugSession {
             .dap_store
             .read_with(cx, |store, _| store.session_by_id(session_id))
         else {
-            return "".to_owned();
+            return "".into();
         };
 
         self.label