Update dependences, register block metadata, & use components, icons, and helpers from repos

[oakesjosh]

This shouldn't be merged into master yet -- Opening a PR for dev testing, then we can send to support for testing. The we're not tied to a specific release.

This can be a pain to switch back and forth locally. A rm -rf node_modules and fresh install is needed. We no longer need the --legacy-peer-deps when doing an npm install though. Then install the submodules git submodule update --init --recursive. To switch back to a previous branch you'll have to delete the 3 submodule directories. rm -rf src/packages/{components,helpers,icons}

What this does

• Replace dr-kobros/react-webfont-loader in the KadecnceWebFontLoader and FontLoader components.

• Replace react-container-dimensions with similar function named ContainerDimensions in column-drag-resizer/index,js component.

• Update react-select

• Update @wordpress/i18n

• Update @wordpress/scripts

• Generally updated dependences

• Update the gulp files to not call deprecated functions

• Update scss files processed by gulp to use @use instead of deprecated @import.

Support new 6.7 block manifest metadata registration

With the updated @wordpress/scripts we can use the new wp-scripts build-blocks-manifest. This is registered in kadence-blocks.php. This improves performance since PHP only has to read and parse a single file from the server to get all block metadata. When attempting the register the blocks later, i'll check if it's already pulled in the metadata before opening the blocks specific block.json.

Moving packages to repos

• Delete existing /src/packages/{components, icons, helpers}
• Add submodule for components, icons, helpers