fix: rm i18n-next and consolidate to next-intl (#606)

* rm old crowdin files and instructions
* consolodate lang config
* rm all i18next instances and replace with next-intl
* update curlybraces for next-intl
* shift Trans items to next-intl
* rm format (from 2022) and unfixable
* update last of <trans /> ele to next-intl
* use Accept-Header lang browser flag
* rm redundant Image size type
* impl next-intl config
* add linted next-intl files
* update Lingo config - include locales!!!
* run yarn i18n:lingo for docs
* run yarn i18n:lingo for locales
* update metalinks config import
* fix tsc type usage
* update header lists for t.raw
* use default getTranslations settings
* add back sass logging ingore
* add back builder cacthes
* update tests for next-intl
* switch vercel runtime to nodejs
* add smoke tests for core ele
* added test snapshot
* add learn translations
* rm old i18Provider test
* use diff tool audit to clean up sitemap
* rm results text gen from sitemaps
* update test warnings
* run tests with update
* update test snaps
* small type change

feat: add cookbook examples for python (#622)