fix/html-twig-templates Some miscellaneous HTML validation correction

[apio-sys]

Contribution Guidelines

• I've read the contribution guidelines and wholeheartedly agree them

What does this PR include?

Short Description

A few very simple miscellaneous HTML corrections in the /data/web/templates files. Ideally I would like to see the whole login page validate completely but there are a few items that can't really be fixed. autocorrect="off" is a non-standard attribute but can help on Apple/Safari browsers. <legend> seems wrongly used in a lot of places but simply removing it has severe styling implications. I fixed as much as possible other bits and pieces.

Affected Containers

Since this only affects files served from the Web UI, I guess only following (either/or) containers are affected

• nginx-mailcow
• php-fpm-mailcow

Did you run tests?

What did you test?

Checked page rendering of login page to make sure no adverse functionality or styling effect.

What were the final results?

No issues encountered.

[milkmaker]

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[DerLinkman]

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