The calculations were a little incorrect as I failed to consider the
sidebar button correctly and how the search's min width and max width
impact layout.
I also move rules from Sidebar.less regarding the placement of the button
into layout where I believe they belong. We do not have a header component, so the
positioning (margin) of the sidebar button in current form should be here.
This can be revisited if we introduce a header component.
Bug: T249363
Change-Id: I4ff640380eafc8beedb2c3c8fb00a56c71c5cb45
To support roll out and avoid issues with cached HTML the new
styles for the new search feature are restricted to HTML where
the body tag has `skin-vector-search-header` class.
For legacy mode, we introduce a new class
`skin-vector-search-header-legacy` and temporarily use a CSS3 `:not()`
selector to ensure the styles ship during the phase where cached
HTML can be served. While this will create some display issues in
browsers that do not support CSS3 selectors, all grade A browsers in
our compatability matrix support this.
Bug: T249363
Change-Id: I7f8059d43eaab49de362405784b34a4fe502c7b0
Keep variables concerned with layout in the master file but pull out
the default layout into a separate file.
Change-Id: I4acc2937f8e8a76274a3ffb76e3729dc89ce1ad7