Motivated by user feature requests * https://github.com/zed-industries/zed/issues/6880 * https://discord.com/channels/869392257814519848/1439453067119562793 In analogy with VSCode functionality, we're adding a keybinding to the project panel. This is particularly for useful for large monorepos. Release Notes: - Keybinding added for `CollapseAllEntries` when in the `ProjectPanel`. Co-authored-by: mikayla <mikayla@zed.dev>