fix: Multiline field not correctly size in parent block when copy/paste or load.

[yamadayutaka]

The basics

• I branched from develop
• My pull request is against develop
• My code follows the style guide
• I ran npm run format and npm run lint

The details

Resolves

• Multiline field not correctly size in parent block when copy/paste #6165
• MultilineInput - Not sized properly when workspace is loaded. #6071

Proposed Changes

Changing size calculation in updateSize_ from getTextWidth to getFastTextWidth.

Behavior Before Change

Multiline field not correctly size in parent block when copy/paste or load.

Behavior After Change

Multiline field correctly size in parent block when copy/paste or load.

[BeksOmega]

This looks good to me! Thank you for trying the alternate approach =)

I need to circle back with the core team on whether we're merging this into the v9 release or saving it for the next one. But I should be able to get back to you soon on that =)

Thank you again! This looks great!

[BeksOmega]

Going to go ahead and merge this, so it should go out with v9 =) Thanks again!