Silence errors when refreshing projects.

We use this endpoint also to do autologins, so HTTP 403's are not
unexpected.

lib/www/client/source/src/store/modules/projects/actions.js

@@ -13,7 +13,7 @@ async function refreshProjects ({commit, dispatch, state, rootState}) {
   const init = {
     signal: state.loading.signal
   };
-  const res = await dispatch('api', [url, init]);
+  const res = await dispatch('api', [url, init, null, {silent:true}]);
 
   if (res) {
     commit('setProjects', res);