The Mustache templates were a bit of a mix of tabs and spaces. I like
spaces personally but dislike inconsistency within the project more. Use
tabs.
Change-Id: I22b777489d7281b42d1ab1981b47b2a71d3b639a
* Content.mustache doc param order was modified to follow the html structure
order (with html-dataAfterContent at bottom ). `html-userlangattributes`
was added to param documention since it was absent.
* Footer.mustache doc param order was modified to follow the html structure
order (with `html-userlangattributes` placed after `html-vector-before-footer`)
* Navigation.mustache was modified to remove `html-sidebar`,
`html-navigation-left-tabs` and `html-navigation-right-tabs` params from
doc since those are absent from Navigation.mustache.
* `data-namespace-tabs`, `data-variants`, `data-page-actions`,
`data-page-actions-more`, `data-search-box`, `data-sidebar` params were
added in Navigation.mustache documentation since those are present.
Bug: T243281
Change-Id: I321f8d61ad0305f508521e8d4d805e846103b357