reindex when checking database

Came across a user with a corrupt index:

sqlite> pragma integrity_check;
 integrity_check = wrong # of entries in index ix_revlog_cid
 integrity_check = wrong # of entries in index ix_cards_sched

This is not picked up by a quick check, and a vacuum does not
fix it, but a reindex does.

AnkiWeb currently performs a full check when a file is uploaded
to it, so this was leading to "corrupt" to show up when syncing
the collection, with a local DB check not reporting/fixing the issue.

rslib/src/storage/sqlite.rs

@@ -339,7 +339,7 @@ impl SqliteStorage {
     }
 
     pub(crate) fn optimize(&self) -> Result<()> {
-        self.db.execute_batch("vacuum; analyze")?;
+        self.db.execute_batch("vacuum; reindex; analyze")?;
         Ok(())
     }