* Move extensions
Signed-off-by: Ryan Wang <i@ryanc.cc>
* Refactor editor extensions to use explicit naming
* Refactor attachment selector integration in editor
* Remove vue-demi from Vite external dependencies
* Add README for richtext-editor package
* Refactor attachment composable and update upload permissions
* Refactor editor i18n keys and move upload strings
* Refactor AllExtensions to ExtensionsKit and update usage
* Move heading id attribute to extension implementation
* Refactor i18n usage to use i18n.global.t
* Update README to reflect changes in editor extensions, replacing AllExtensions with ExtensionsKit
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Signed-off-by: Ryan Wang <i@ryanc.cc>