* Fix translation formatting of Custom Theme docs
* Update available languages
* Update changed string in other languages
Avoids re-translation effort
* Revert change to i18n locale resources
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Co-authored-by: schroda <50052685+schroda@users.noreply.github.com>
Switch to "lingui" for better DX.
Tried to persist existing languages as much as possible.
Removed "vite-plugin-node-polyfills" because it's incompatible with "lingui"
