chore!: 💥 🔧 rename @eslegant/config to @eslegant/js

Renamed @eslegant/config to @eslegant/js, reflecting the new structure and
purpose of it just having rules related to javascript and
typescript

Moved said package to the new ./configs/ directory. Packages under the
./packages/ directory will be related to ones that aren't related to
ESLint itself and/or its configuration.

eslint.config.js

@@ -1,4 +1,4 @@
-import { presets } from '@eslegant/config';
+import { presets } from '@eslegant/js';
 
 export default [
 	...presets.strict,