Bump v1.4.0

* Add & updated Weblate translations
* Add VLAN form to the WAN page
* Add switch to disable Management Frame Protection (802.11w)
* Update Foris JS library to v5.5.0
* Update node image to v16.x
* Restructure Guide Finish page
* Refactor StaticLeases table
* Refactor ConnectionTest
* Remove redundant endpoint for HaaS
* Remove optional watch-poll parameter in package.json
* NPM audit fix
* Some other changes & improvements
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