Fix: Update test per minor changes in Codemirror/view 6.39.

Author: bjones1

server/tests/overall_core/mod.rs

@@ -1388,7 +1388,7 @@ async fn test_5_core(
                             StringDiff {
                                 from: 0,
                                 to: Some(8),
-                                insert: "# Tesbart.\n".to_string(),
+                                insert: "# foobarTest.\n".to_string(),
                             },
                             StringDiff {
                                 from: 24,