Init support of i18n and English, Mandarin, Spanish, French (#1317)

* Init support of i18n and English and mandarin

* Update common.js (#1320)

* add General Appearance and Chat setting zh translate (#1414)

* add config zh translate (#1461)

* patch some translation pages

* Update locality fixes

* update: complete login page Mandarin translation. (#1709)

update: complete Mandarin translation.

* complete translation

* update github to run validator

* bump to test workflow failure

* bump to fix tests

* update workflow

* refactor lang selector support

* add Spanish and French

* add dictionaries

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Co-authored-by: GetOffer.help <13744916+getofferhelp@users.noreply.github.com>
Co-authored-by: AIR <129256286+KochabStar@users.noreply.github.com>
Co-authored-by: Ezio T <ezio5600@gmail.com>