Twenty Twenty-Two: Improve the default template provided to the post/page template editor

[kjellr]

Currently, selecting the "New" template option in the post/page editor results in a sample template that includes a generic header:

Instead of this template, Twenty Twenty-Two should provide one that's designed like its standard post/page templates, and uses the same header + footer.

This was attempted during the theme's initial development, but was blocked because Gutenberg did not properly load a theme's template parts into this template editor:

​https://github.com/WordPress/twentytwentytwo/issues/177#issuecomment-954794119

There's a Gutenberg issue here to help fix that behavior:

​https://github.com/WordPress/gutenberg/issues/36124

Once that's taken care of, this issue can be resolved here in the theme.

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Originally reported by @poena on GitHub:
​https://github.com/WordPress/twentytwentytwo/issues/177

[poena]

This is also reported upstream. It could be fixed either in the theme or in the editor by improving the template creation flow for all block themes.

​https://github.com/WordPress/gutenberg/issues/57636

[karmatosed]

To me, this should be fixed now upstream over in the theme. What do you feel now @poena?

[poena]

Yes lets close this as reported upstream.