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/workspace/Cargo.toml

@@ -45,6 +45,7 @@ node_runtime.workspace = true
 parking_lot.workspace = true
 postage.workspace = true
 project.workspace = true
+remote_projects.workspace = true
 task.workspace = true
 schemars.workspace = true
 serde.workspace = true