DMN Editor: user can not increase the number of added rows/columns quickly in nested expressions

[jomarko]

This is an issue related to #168 feature. there is a corner case the new context menu is emptied:

This issue can be reproduced only for nested expressions!

Steps to reproduce

1. open a decision node
2. set it root expression as context
3. set the context first entry as decision table
4. invoke context menu for the decision table
5. select insert
6. in the show sub context menu start to quickly clicking o + or -. Please notice if user click slowly, nothing happens. It is probably something with mouse events handlers, maybe doubleclick handlers?

[tiagobento]

While testing this reproducer I found another issue 😅

Btw this one looks like a very simple case of e.stopPropagation() at the number input component.

[danielzhe]

I found out that this issue is not reproducible exactly like this anymore, but there's still a very similar issue, but now the menu disappears instead of being blank.
See the video bellow:

Screen.Recording.2023-10-11.at.10.36.28.mov