Harden Firefox policy dirs even when the theme refresh fails

migrations/1787515927.sh

@@ -9,8 +9,11 @@ for dir in "${BROWSER_POLICY_MANAGED_DIRS[@]}"; do
   repaired=1
 done
 
+# Repainting the policy color is cosmetic and the next theme change redoes it.
+# Under bash -euo pipefail a failure here would abort the migration before the
+# Firefox directories below are hardened, and the marker would never be written.
 if (( repaired )); then
-  omarchy-theme-set-browser
+  omarchy-theme-set-browser || true
 fi
 
 for dir in "${BROWSER_POLICY_FIREFOX_DIRS[@]}"; do