Data: Move kf_font_viewer to ISO

- Added testcon2_eng to IMG;
- use_mb was removed from IMG because it was not used.

Co-authored-by: Max Logaev <maxlogaev@proton.me

data/common/settings/assoc.ini

@@ -79,7 +79,7 @@ next=$TextEditor
 [Assoc]
 /=/sys/file managers/eolite
 
-kf=/sys/KF_VIEW
+kf=/kolibrios/utils/kf_view
 
 txt=$CodeEdit
 log=$CodeEdit