Make banners similar between frameworks

[mraible]

I created apps using the following commands:

jhipster --defaults --skip-install --client-framework angular
jhipster --defaults --skip-install --client-framework react
jhipster --defaults --skip-install --client-framework vue

Here are the results:

This PR makes the banners more similar. You might notice there are still some differences. Notably, Angular has no line around the body content, React has a line with a silver background, and Vue has no line but does have a gray background.

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[DanielFran]

@mraible I noticed it is missing the v in the version for react

[mraible]

Good eye, @DanielFran! Fixed in fd5d3f3.