Refactor LSP restart logic

Instead of storing `initialization_options` in every LSP adapter as
before, store previous LSP settings in `Project` entirely.

This way, we can later have use multiple different project
configurations per single LSP with its associated adapter.

co-authored-by: Max Brunsfeld <max@zed.dev>

crates/command_palette/src/command_palette.rs

@@ -369,6 +369,7 @@ mod tests {
             editor::init(cx);
             workspace::init(app_state.clone(), cx);
             init(cx);
+            Project::init_settings(cx);
             app_state
         })
     }