fix: remove default french text

src/views/admin/page-admin-circles.pug

@@ -90,7 +90,7 @@
                 value-user.username='hubl-workaround-493'
                 widget-user.username='solid-form-hidden'
 
-                submit-button='Rejoindre'
+                submit-button=''
                 data-trans='submit-button=circle.list.buttonJoin'
               )
               hubl-reactivity(data-src=`${endpoints.circles || endpoints.get.circles}` target-src='${value}')