Update mimeapps.list

x/.config/mimeapps.list

@@ -1,7 +1,13 @@
 [Default Applications]
 application/epub+zip=com.github.johnfactotum.Foliate.desktop
+image/png=feh
+image/jpeg=feh
+image/gif=feh
+application/pdf=zathura
+text/html=emacs.desktop
+application/python=emacs.desktop
+application/javascript=emacs.desktop
 x-www-browser=qutebrowser.desktop
-text/html=org.qutebrowser.qutebrowser.desktop
 x-scheme-handler/http=qutebrowser.desktop
 x-scheme-handler/https=qutebrowser.desktop
 x-scheme-handler/about=qutebrowser.desktop