Main feature here is the `scripts/intl` tool that allows people to quickly create or update localization files with simple:

```
scripts/intl de
```

This will parse the code for localization strings, and compare it against `de` locale, removing unused, and assigning `null` to new strings.

We can also make it even easier for people by running:

```
scripts/intl all
```

after every localization string change in the codebase, which will update all existing locales so people can just browse through their ones and fill in nulls.