Fix the tooltip for the Project Search status bar button to ensure it displays the keybinding hint consistently when hovered over.
### Reproduction steps 1. Open Zed with no file or project open 2. Click the magnifying glass (Project Search) button in the bottom-left status bar to open 3. Hover over the magnifying glass (Project Search) button in the bottom-left status bar 4. Wait for the tooltip to appear --- Open Zed with no file or project open <img width="541" height="1061" alt="Image" src="https://github.com/user-attachments/assets/b0ad5b15-e3bb-4916-b5f5-f94bd9dc8e56" /> Click the magnifying glass (Project Search) button in the bottom-left status bar to open <img width="267" height="130" alt="Image" src="https://github.com/user-attachments/assets/23f0bcea-6288-4e65-ba87-91d72af27cc9" /> <img width="997" height="116" alt="Image" src="https://github.com/user-attachments/assets/15b1cd40-a4ee-41f9-88ab-0fb07876e5a9" /> Hover over the magnifying glass (Project Search) button in the bottom-left status bar  ### Current