recent_projects: Simplify folder addition affordances (#51841)

Danilo Leal created 

The recent projects had two plus buttons inside of it which weren't
immediately clear what they did. Those buttons would add a project to
the current workspace, which turned out to be _not_ what people expected
it would do. Because of this, I removed one of them and swapped the icon
of the other, to hopefully make the distinction more clear.

<img width="500" height="484" alt="Screenshot 2026-03-18 at 11  59@2x"
src="https://github.com/user-attachments/assets/341769fb-771e-450b-8814-a641bd8b63d5"
/>

Release Notes:

- N/A

Change summary

assets/icons/folder_plus.svg                  |  5 ++++
crates/icons/src/icons.rs                     |  1 
crates/recent_projects/src/recent_projects.rs | 24 ++------------------
3 files changed, 9 insertions(+), 21 deletions(-)

Detailed changes

assets/icons/folder_plus.svg 🔗 

@@ -0,0 +1,5 @@
+<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M8 7.29524V10.6536" stroke="#C6CAD0" stroke-width="1.2" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M6.3208 8.97442H9.67917" stroke="#C6CAD0" stroke-width="1.2" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M12.8 13C13.1183 13 13.4235 12.8761 13.6486 12.6554C13.8735 12.4349 14 12.1356 14 11.8236V5.94118C14 5.62916 13.8735 5.32992 13.6486 5.10929C13.4235 4.88866 13.1183 4.76471 12.8 4.76471H8.06C7.8593 4.76664 7.66133 4.71919 7.48418 4.6267C7.30703 4.53421 7.15637 4.39964 7.046 4.2353L6.56 3.52941C6.45073 3.36675 6.30199 3.23322 6.1271 3.14082C5.95221 3.04842 5.75666 3.00004 5.558 3H3.2C2.88174 3 2.57651 3.12395 2.35148 3.34458C2.12643 3.56521 2 3.86445 2 4.17647V11.8236C2 12.1356 2.12643 12.4349 2.35148 12.6554C2.57651 12.8761 2.88174 13 3.2 13H12.8Z" stroke="#C6CAD0" stroke-width="1.2" stroke-linecap="round" stroke-linejoin="round"/>
+</svg>

crates/recent_projects/src/recent_projects.rs 🔗 

@@ -712,32 +712,14 @@ impl PickerDelegate for RecentProjectsDelegate {
         window: &mut Window,
         cx: &mut Context<Picker<Self>>,
     ) -> Div {
-        let focus_handle = self.focus_handle.clone();
-
         h_flex()
             .flex_none()
             .h_9()
-            .pl_2p5()
-            .pr_1p5()
+            .px_2p5()
             .justify_between()
             .border_b_1()
             .border_color(cx.theme().colors().border_variant)
             .child(editor.render(window, cx))
-            .child(
-                IconButton::new("add_folder", IconName::Plus)
-                    .icon_size(IconSize::Small)
-                    .tooltip(move |_, cx| {
-                        Tooltip::for_action_in(
-                            "Add Project to Workspace",
-                            &workspace::AddFolderToProject,
-                            &focus_handle,
-                            cx,
-                        )
-                    })
-                    .on_click(|_, window, cx| {
-                        window.dispatch_action(workspace::AddFolderToProject.boxed_clone(), cx)
-                    }),
-            )
     }
 
     fn match_count(&self) -> usize {
@@ -1169,9 +1151,9 @@ impl PickerDelegate for RecentProjectsDelegate {
                     .gap_px()
                     .when(is_local, |this| {
                         this.child(
-                            IconButton::new("add_to_workspace", IconName::Plus)
+                            IconButton::new("add_to_workspace", IconName::FolderPlus)
                                 .icon_size(IconSize::Small)
-                                .tooltip(Tooltip::text("Add Project to Workspace"))
+                                .tooltip(Tooltip::text("Add Project to this Workspace"))
                                 .on_click({
                                     let paths_to_add = paths_to_add.clone();
                                     cx.listener(move |picker, _event, window, cx| {