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
Changes:
* Code is moved from SkinVector to SkinVectorLegacy verbatim since it is now only
needed by SkinVectorLegacy
so we remove it:
** This step broke MainMenu rendering so this was captured in VectorComponentMainMenu
** The isLegacy code no longer makes sense and is removed in a follow up
* storybook no longer run on CI
Authors: Bernard Wang and Jon Robson
Bug: T321102
Bug: T319349
Change-Id: Ib424ca1c767161fdae8c0aeedfe662b7fa039ff6