Simplify the user links component
Introduce MenuListItem and IconLink components.
HTML changes:
* Logout, login and account links are now wrapped in a ul and li tag
instead of a DIV for consistent with other menus (this occurs due
to use of MenuContents). Code reviewer can see tests
for an understanding of how the template data and markup has changed.
VISUAL CHANGE:
* Increased margins in user links menu relating to change from DIV to
UL / LI tags.
Bug: T320927
Change-Id: Ia24be48105e1ff85da227883abb5dddb3d54388d
The Dropdown component should be considered the dropdown folder going
forward. This should be distinguished as a different component that
composes the Dropdown component
Since the template itself is rather simple it seems preferable to have
duplicate templates that describe the actual component (PageTools,
VariantsDropdown and LanguageButton)
MenuDropdown is renamed Dropdown and styles that don't correspond to the
Dropdown component are moved to the relevant components.
MenuContents mustache template (future component) is added to DRY up
several of the new templates.
Bug: T320927
Change-Id: I220d0a477b3f05b278bd2cec7dd601c7b3b17c6f
