Fixed mainthread issues

This release solves the mainthread issue.

I have a relatively big vault (around 1k notes) and when metadump runs it freezes the UI for a few seconds.

Now it's solved with an awesome workaround using setTimeout and promises to defer some calculations to the next V8 tick.

The performance is the same but it will now allow other things to happen while it process.

There is no breakage, this is a performance improvement.

Seems LGTM

I already use this daily and works for my usecase.

I use paired with my hugo theme (hugo-kb) because calculating the relations between notes, backlinks and so is so heavy (O(n²))