Use "restore" more consistently in the git panel (#25780)

This PR replaces almost all uses of "discard" in the git panel UI with
"restore", since that's the verb we settled on for the project diff.

The only exception is in the confirmation prompt for restoring files,
where I've kept the "discard changes" language. I think consistency is
less important here and it's helpful to rephrase the action that's being
taken to emphasize that it's destructive.

Release Notes:

- N/A

crates/git_ui/src/git_panel.rs

@@ -842,7 +842,7 @@ impl GitPanel {
         .detach();
     }
 
-    fn discard_tracked_changes(
+    fn restore_tracked_files(
         &mut self,
         _: &RestoreTrackedFiles,
         window: &mut Window,
@@ -872,8 +872,8 @@ impl GitPanel {
 
         #[derive(strum::EnumIter, strum::VariantNames)]
         #[strum(serialize_all = "title_case")]
-        enum DiscardCancel {
-            DiscardTrackedChanges,
+        enum RestoreCancel {
+            RestoreTrackedFiles,
             Cancel,
         }
         let prompt = prompt(
@@ -884,7 +884,7 @@ impl GitPanel {
         );
         cx.spawn(|this, mut cx| async move {
             match prompt.await {
-                Ok(DiscardCancel::DiscardTrackedChanges) => {
+                Ok(RestoreCancel::RestoreTrackedFiles) => {
                     this.update(&mut cx, |this, cx| {
                         let repo_paths = entries.into_iter().map(|entry| entry.repo_path).collect();
                         this.perform_checkout(repo_paths, cx);
@@ -2386,17 +2386,15 @@ impl GitPanel {
         } else {
             "Stage File"
         };
-        let revert_title = if entry.status.is_deleted() {
-            "Restore file"
-        } else if entry.status.is_created() {
-            "Trash file"
+        let restore_title = if entry.status.is_created() {
+            "Trash File"
         } else {
-            "Discard changes"
+            "Restore File"
         };
         let context_menu = ContextMenu::build(window, cx, |context_menu, _, _| {
             context_menu
                 .action(stage_title, ToggleStaged.boxed_clone())
-                .action(revert_title, git::RestoreFile.boxed_clone())
+                .action(restore_title, git::RestoreFile.boxed_clone())
                 .separator()
                 .action("Open Diff", Confirm.boxed_clone())
                 .action("Open File", SecondaryConfirm.boxed_clone())
@@ -2413,7 +2411,7 @@ impl GitPanel {
                 .separator()
                 .action("Open Diff", project_diff::Diff.boxed_clone())
                 .separator()
-                .action("Discard Tracked Changes", RestoreTrackedFiles.boxed_clone())
+                .action("Restore Tracked Files", RestoreTrackedFiles.boxed_clone())
                 .action("Trash Untracked Files", TrashUntrackedFiles.boxed_clone())
         })
     }
@@ -2697,7 +2695,7 @@ impl Render for GitPanel {
             .on_action(cx.listener(Self::toggle_staged_for_selected))
             .on_action(cx.listener(Self::stage_all))
             .on_action(cx.listener(Self::unstage_all))
-            .on_action(cx.listener(Self::discard_tracked_changes))
+            .on_action(cx.listener(Self::restore_tracked_files))
             .on_action(cx.listener(Self::clean_all))
             .on_action(cx.listener(Self::fetch))
             .on_action(cx.listener(Self::pull))