This MR enables new HAML Linters as mentioned in #22072 (closed) (particularly in this comment)
AltText
ClassAttributeWithStaticValue
FinalNewline
HtmlAttributes
ImplicitDiv
SpaceBeforeScript
TrailingWhitespace
SpaceInsideHashAttributes
Are there points in the code the reviewer needs to double check?
Pretty much every change needs to be reviewed as we want to be sure that an attempt to fix a Lint rule doesn't cause any unintended side-effect (which otherwise doesn't happen)
