Ship mimeapps.list via /etc/skel; shrink mimetypes.sh

config/mimeapps.list ships at /etc/skel/.config/mimeapps.list (via
omarchy-settings's existing config/** -> /etc/skel/.config copy).
New users get the full Omarchy MIME defaults on first login without
running install scripts.

install/config/mimetypes.sh shrinks to two runtime ops that a static
file can't replace:
- omarchy-refresh-applications: copies .desktop entries and icons into
  the user home and refreshes the desktop database
- xdg-settings set default-web-browser chromium.desktop: sets the
  system-default browser; omarchy-install-browser overrides this if
  the user later picks a different browser.

config/mimeapps.list

@@ -0,0 +1,50 @@
+[Default Applications]
+inode/directory=org.gnome.Nautilus.desktop
+
+image/png=imv.desktop
+image/jpeg=imv.desktop
+image/gif=imv.desktop
+image/webp=imv.desktop
+image/bmp=imv.desktop
+image/tiff=imv.desktop
+
+application/pdf=org.gnome.Evince.desktop
+
+x-scheme-handler/http=chromium.desktop
+x-scheme-handler/https=chromium.desktop
+
+video/mp4=mpv.desktop
+video/x-msvideo=mpv.desktop
+video/x-matroska=mpv.desktop
+video/x-flv=mpv.desktop
+video/x-ms-wmv=mpv.desktop
+video/mpeg=mpv.desktop
+video/ogg=mpv.desktop
+video/webm=mpv.desktop
+video/quicktime=mpv.desktop
+video/3gpp=mpv.desktop
+video/3gpp2=mpv.desktop
+video/x-ms-asf=mpv.desktop
+video/x-ogm+ogg=mpv.desktop
+video/x-theora+ogg=mpv.desktop
+application/ogg=mpv.desktop
+
+x-scheme-handler/mailto=HEY.desktop
+
+text/plain=nvim.desktop
+text/english=nvim.desktop
+text/x-makefile=nvim.desktop
+text/x-c++hdr=nvim.desktop
+text/x-c++src=nvim.desktop
+text/x-chdr=nvim.desktop
+text/x-csrc=nvim.desktop
+text/x-java=nvim.desktop
+text/x-moc=nvim.desktop
+text/x-pascal=nvim.desktop
+text/x-tcl=nvim.desktop
+text/x-tex=nvim.desktop
+application/x-shellscript=nvim.desktop
+text/x-c=nvim.desktop
+text/x-c++=nvim.desktop
+application/xml=nvim.desktop
+text/xml=nvim.desktop

install/config/mimetypes.sh

@@ -1,60 +1,7 @@
+# MIME default mappings now ship as config/mimeapps.list (via /etc/skel for
+# new users; existing users keep their own). This script only handles the
+# runtime side: refresh applications and set Chromium as the system default
+# web browser. (omarchy-install-browser overrides this if the user picks
+# something else later.)
 omarchy-refresh-applications
-update-desktop-database ~/.local/share/applications
-
-# Open directories in file manager
-xdg-mime default org.gnome.Nautilus.desktop inode/directory
-
-# Open all images with imv
-xdg-mime default imv.desktop image/png
-xdg-mime default imv.desktop image/jpeg
-xdg-mime default imv.desktop image/gif
-xdg-mime default imv.desktop image/webp
-xdg-mime default imv.desktop image/bmp
-xdg-mime default imv.desktop image/tiff
-
-# Open PDFs with the Document Viewer
-xdg-mime default org.gnome.Evince.desktop application/pdf
-
-# Use Chromium as the default browser
 xdg-settings set default-web-browser chromium.desktop
-xdg-mime default chromium.desktop x-scheme-handler/http
-xdg-mime default chromium.desktop x-scheme-handler/https
-
-# Open video files with mpv
-xdg-mime default mpv.desktop video/mp4
-xdg-mime default mpv.desktop video/x-msvideo
-xdg-mime default mpv.desktop video/x-matroska
-xdg-mime default mpv.desktop video/x-flv
-xdg-mime default mpv.desktop video/x-ms-wmv
-xdg-mime default mpv.desktop video/mpeg
-xdg-mime default mpv.desktop video/ogg
-xdg-mime default mpv.desktop video/webm
-xdg-mime default mpv.desktop video/quicktime
-xdg-mime default mpv.desktop video/3gpp
-xdg-mime default mpv.desktop video/3gpp2
-xdg-mime default mpv.desktop video/x-ms-asf
-xdg-mime default mpv.desktop video/x-ogm+ogg
-xdg-mime default mpv.desktop video/x-theora+ogg
-xdg-mime default mpv.desktop application/ogg
-
-# Use Hey for mailto: links
-xdg-mime default HEY.desktop x-scheme-handler/mailto
-
-# Open text files with nvim
-xdg-mime default nvim.desktop text/plain
-xdg-mime default nvim.desktop text/english
-xdg-mime default nvim.desktop text/x-makefile
-xdg-mime default nvim.desktop text/x-c++hdr
-xdg-mime default nvim.desktop text/x-c++src
-xdg-mime default nvim.desktop text/x-chdr
-xdg-mime default nvim.desktop text/x-csrc
-xdg-mime default nvim.desktop text/x-java
-xdg-mime default nvim.desktop text/x-moc
-xdg-mime default nvim.desktop text/x-pascal
-xdg-mime default nvim.desktop text/x-tcl
-xdg-mime default nvim.desktop text/x-tex
-xdg-mime default nvim.desktop application/x-shellscript
-xdg-mime default nvim.desktop text/x-c
-xdg-mime default nvim.desktop text/x-c++
-xdg-mime default nvim.desktop application/xml
-xdg-mime default nvim.desktop text/xml