add french as flatpak language

playbooks/setupworkstation/main.yaml

@@ -127,6 +127,9 @@
           - qt6ct
           - trash-cli
 
+    - name: configure flatpak for French
+      become: true
+      command: flatpak config --set languages en;fr
     - name: install flatpak applications
       become: true
       flatpak: