desktop: rustfmt the summary() count closure

cargo fmt --check (run 2856) wanted the long closure body wrapped in a block.
Formatting only.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FRgehjoz7Yv8LkUfADxACm

desktop/src-tauri/src/local/mod.rs

@@ -31,7 +31,10 @@ pub fn summary(db: &Db) -> String {
         Ok(c) => c,
         Err(_) => return "counts unavailable (lock poisoned)".to_string(),
     };
-    let count = |sql: &str| conn.query_row(sql, [], |r| r.get::<_, i64>(0)).unwrap_or(-1);
+    let count = |sql: &str| {
+        conn.query_row(sql, [], |r| r.get::<_, i64>(0))
+            .unwrap_or(-1)
+    };
     format!(
         "{} notes, {} labels",
         count("SELECT COUNT(*) FROM notes"),