Ensure pull diagnostics do not happen for non-full mode editors (#32449)

Follow-up of https://github.com/zed-industries/zed/pull/19230

Release Notes:

- N/A

crates/editor/src/editor.rs

@@ -16077,13 +16077,16 @@ impl Editor {
         window: &Window,
         cx: &mut Context<Self>,
     ) -> Option<()> {
-        let project = self.project.as_ref()?.downgrade();
+        if !self.mode().is_full() {
+            return None;
+        }
         let pull_diagnostics_settings = ProjectSettings::get_global(cx)
             .diagnostics
             .lsp_pull_diagnostics;
         if !pull_diagnostics_settings.enabled {
             return None;
         }
+        let project = self.project.as_ref()?.downgrade();
         let debounce = Duration::from_millis(pull_diagnostics_settings.debounce_ms);
         let mut buffers = self.buffer.read(cx).all_buffers();
         if let Some(buffer_id) = buffer_id {