finish multi-app examples

desktop_env/evaluators/metrics/__init__.py

@@ -8,6 +8,8 @@ from .chrome import (
     is_expected_tabs,
     is_expected_bookmarks,
     compare_pdfs,
+    compare_htmls,
+    compare_archive,
     is_cookie_deleted,
     is_shortcut_on_desktop,
     check_font_size,
@@ -92,7 +94,8 @@ from .table import (
 )
 from .thunderbird import (
     check_thunderbird_prefs,
-    check_thunderbird_filter
+    check_thunderbird_filter,
+    check_thunderbird_folder
 )
 from .vlc import (
     is_vlc_playing,