Fix block-mover for images in column block

[mikeyarce]

Description

Move block-mover to left side for full or wide images inside column blocks to prevent them overlapping. Fixes #18195

How has this been tested?

• Used the Gutenberg development environment to use WordPress locally
• Tested on Firefox and Chrome at breakpoints 600px and up
• Tested on latest master as of 96f7d34
• Made sure that the full and wide image blocks outside of columns are not impacted

Screenshots

Wide Image in a Column block

Before

After

Full Width Image in a column block:

Before

After

Types of changes

• SCSS changes, introducing new rules for column block wide and full images.
• Fixes a layout bug

Checklist:

• My code is tested.
• My code follows the WordPress code style.
• My code follows the accessibility standards.
• My code has proper inline documentation.
• I've included developer documentation if appropriate.

[karmatosed]

@mikeyarce, unfortunately, there seem some conflicts, would you be able to get those resolved?

[mikeyarce]

@karmatosed I'll take a look this week!

[karmatosed]

Awesome thanks @mikeyarce

[ZebulanStanphill]

Thanks to the G2 UI overhaul, the movers show up in a consistent location relative to the toolbar. This PR is no longer needed, so I'm closing it. 🙂