Retire the stock user icon font missed by Quattro upgrades

(cherry picked from commit f5cd244ed0)

migrations/1788848726.sh

@@ -0,0 +1,21 @@
+echo "Retire the stock user icon font missed by the Quattro upgrade"
+
+legacy_font="$HOME/.local/share/fonts/omarchy.ttf"
+
+# The upgrader treated this as ~/.config/omarchy.ttf and left the old family
+# registered alongside the packaged font. Preserve custom fonts and symlinks.
+if [[ -f $legacy_font && ! -L $legacy_font ]]; then
+  legacy_hash=$(sha256sum "$legacy_font")
+  if [[ ${legacy_hash%% *} == "e55e67119e82f56f92d90cbf54b7ccc1b2946b32c535a29370439d7ef5215966" ]]; then
+    if [[ ! -f /usr/share/fonts/omarchy/omarchy.ttf ]]; then
+      echo "Packaged Omarchy icon font is missing; keeping the legacy font." >&2
+      exit 1
+    fi
+
+    rm "$legacy_font"
+  fi
+fi
+
+# Also refresh on retries after removal succeeded but the cache refresh failed.
+# The normal update restarts the shell, which reloads Qt's font database.
+fc-cache -f