remote projects per user (#10594)

Release Notes:

- Made remote projects per-user instead of per-channel. If you'd like to
be part of the remote development alpha, please email hi@zed.dev.

---------

Co-authored-by: Bennet Bo Fenner <53836821+bennetbo@users.noreply.github.com>
Co-authored-by: Bennet <bennetbo@gmx.de>
Co-authored-by: Nate Butler <1714999+iamnbutler@users.noreply.github.com>
Co-authored-by: Nate Butler <iamnbutler@gmail.com>

crates/zed/Cargo.toml

@@ -71,6 +71,7 @@ project_panel.workspace = true
 project_symbols.workspace = true
 quick_action_bar.workspace = true
 recent_projects.workspace = true
+remote_projects.workspace = true
 release_channel.workspace = true
 rope.workspace = true
 search.workspace = true