0.20.0.113 Localization Update

Improvements:

• The language selection dropdown in the settings menu now shows a list of all the language in their own language

• Updated the localization framework to make it easier for people to contribute. There's now a readme that describes the process of how to contribute

Fixes:

• Text filters will now search/filter based on the currently selected language instead of English (thanks Mmikeyy for the report!)

• Add a few missing translations, including the new construction bot nudge