remote_server: Improve error reporting (#33770)

Closes #33736

Use `thiserror` to implement error stack and `anyhow` to report is to
user.
Also move some code from main to remote_server to have better crate
isolation.

Release Notes:

- N/A

---------

Co-authored-by: Kirill Bulatov <kirill@zed.dev>

crates/remote_server/Cargo.toml

@@ -65,6 +65,7 @@ telemetry_events.workspace = true
 util.workspace = true
 watch.workspace = true
 worktree.workspace = true
+thiserror.workspace = true
 
 [target.'cfg(not(windows))'.dependencies]
 crashes.workspace = true