Upgrade @types/wordpress__block-editor to latest types

[srtfisher]

The @types/wordpress__block-editor package has been upgraded but we are pinned at an older version. The newer versions has different types exported that weren't compatible with our plugin. They also don't mirror the actual library from WordPress but I digress.

We should update to the latest @types/wordpress__block-editor package and fix any type issues that arise from the upgrade.

[kevinfodness]

Let's update this once 6.9 comes out:

• Remove all @types
• Update @wordpress packages to the versions that ship with 6.9
• Run tsc and reinstall any @types packages that are needed for it to pass