workspace: Display a launchpad page when in an empty window & add it as a `restore_on_startup` value (#44048)

Hi,

This PR fixes nothing. I just miss the option to open recent projects
quickly upon opening Zed, so I made this. Hope I can see it soon in
Preview channel.
If there is any suggestion, just comment. I will take it seriously.

Thank you!

|ui|before|after|
|-|-|-|
|empty pane|<img width="1571" height="941" alt="Screenshot 2025-12-03 at
12 39 25"
src="https://github.com/user-attachments/assets/753cbbc5-ddca-4143-aed8-0832ca59b8e7"
/>|<img width="1604" height="952" alt="Screenshot 2025-12-03 at 12 34
03"
src="https://github.com/user-attachments/assets/2f591d48-ef86-4886-a220-0f78a0bcad92"
/>|
|new window|<img width="1571" height="941" alt="Screenshot 2025-12-03 at
12 39 21"
src="https://github.com/user-attachments/assets/a3a1b110-a278-4f8b-980e-75f5bc96b609"
/>|<img width="1604" height="952" alt="Screenshot 2025-12-04 at 10 43
17"
src="https://github.com/user-attachments/assets/74a00d91-50da-41a2-8fc2-24511d548063"
/>|

---

Release Notes:

- Added a new value to the `restore_on_startup` setting called
`launchpad`. This value makes Zed open with a variant of the welcome
screen ("the launchpad") upon startup. Additionally, this same page
variant is now also what is displayed if you close all tabs in an
existing window that doesn't contain any folders open. The launchpad
page shows you up to 5 recent projects, making it easy to open something
you were working recently.

---------

Co-authored-by: Danilo Leal <daniloleal09@gmail.com>
4109c9dde7Simon Pham committed on 12/16/2025, 10:51:28 AM· committed by GitHubparent9ec147d
21 files changedLine totals unavailable