Regions plugin: Only add resize handles if resize prop is true

[yyao84]

Short description

Currently, adding a new region also creates left and right resize handles regardless of the resize param being set. For small regions, the resize handles makes it so you can't see the actual background color.

Implementation details

Add the resize param to the resize handle creation conditional.

How to test it

regionsPlugin.addRegion({
...,
resize: false
});

Added an e2e test as well

Screenshots

Before:
After:

Checklist

• [✅] This PR is covered by e2e tests
• [✅] It introduces no breaking API changes

[katspaugh]

Thanks!

[larsrgit]

The current implementation only checks during creation of the region. The resize handles should be added when the resize prop is set to true with changeOptions