add vue jwt module

[renanfranca]

See #897 (roadmap at description)

TO-DO

• Refactor the vue-oauth2-keycloak module template files structure like the vue-jwt module
• Rename documentation generator/client/vue/documentation/vue-authentication-components.md to vue-oauth2-keycloak-authentication-components.md and change it's title too
• Add vue-jwt module in the generate.sh at vuejwtapp
  • update the matrix with these new apps in github actions (I can't update the matrix before merge the generate.sh with the new vuejwtapp and vueoauth2app. The reason is that there is a step which tries to generate these two new apps using the generate.sh from the main branch)
  • keep the vueapp until merge the generate.sh with the vuejwtapp and vueoauth2app, because vueapp still be used by matrix.

[renanfranca]

I put a lot of effort into making sure this module is helpful for people already familiar with Vue and hexagonal architecture. I also made sure to include some guidance for beginners using the vue-jwt module in the jhipster-lite project. The documentation walks them through how to use it with examples, while also encouraging them to explore other modules.