chore: simplify link-dependencies task

[barmac]

Use yarn link without additional scripts for diagram-js and bpmn-js.

Proposed Changes

Checklist

To ensure you provided everything we need to look at your PR:

• Brief textual description of the changes present
• Visual demo attached
• Steps to try out present, i.e. using the @bpmn-io/sr tool
• Related issue linked via Closes {LINK_TO_ISSUE} or Related to {LINK_TO_ISSUE}

[nikku]

Any reason we still handle dmn-js and form-js differently?

[barmac]

They are monorepos, so plain yarn link won't work there. We can probably improve linking of those libraries, but it's additional work.

[barmac]

One step at time :)

[nikku]

What I propose (instead of linking) is to facilitate npm override, using core (on board) facilities.

[barmac]

Sure, we could try this out. Last time I checked I wasn't able to get it to work, but it was long time ago.