Check project ID when doing sync

When doing project pull/push, we should check project info based on project's ID instead of project name, to make sure that we're do the right thing even if something happened to the project:

• project got renamed (or project was transferred to other workspace and we still have access to it) - we sync as usual, using the new project name when doing upload/download API calls
• project was deleted - if project info returns 404, we know it got deleted
• project access permission was removed from our user - if project info returns 403, we know there's permission problem

Note: some projects created/updated with an old version of MM plugin will not have project ID stored in the metadata - it would be good if we could handle those correctly as well (just hope that the project was not renamed / transferred).

Once #190 is implemented, it should be possible to add auto tests that will exercise that check.

Inizia tracciando il flusso di pull/push del progetto e il modo in cui i metadati del progetto memorizzano attualmente il nome del progetto. Esamina le chiamate all’API project-info e l’issue #190, quindi aggiungi controlli per la ricerca basata sull’ID, la gestione di rinomini o trasferimenti, l’eliminazione in caso di 404 e gli errori di autorizzazione 403, preservando il comportamento per i metadati senza ID. Il completamento deve includere i test automatici descritti nell’issue.