* [Cleanup] Add enums and types
* Extract "default languages" from ISOLanguages
The "default languages" will also be translated depending on which language the user selected
* Skip duplicate chapters in the Reader
* Debounce "end of page" handling in the reader
* Update keyboard event listener
In case the "go" function changed, the listeners have to be updated
* Fix i18n tsc issue
"t" can return null by default.
This was already disabled in the config, but it had no effect on tsc.
* Fix translation in "DefaultNavBar"
key was missing and since this is a constant the translation wouldn't update in case the language got changed after first load.
* Enable typing for i18n translation keys
* Add translation keys
