Add missing imports for test

Author: philc

tests/unit_tests/completion_test.js

@@ -1,8 +1,10 @@
 import "./test_helper.js";
+import "../../background_scripts/tab_recency.js";
 import "../../background_scripts/bg_utils.js";
 import "../../background_scripts/completion_engines.js";
 import "../../background_scripts/completion_search.js";
 import "../../background_scripts/completion.js";
+import "../../lib/url_utils.js";
 
 const hours = (n) => 1000 * 60 * 60 * n;