Move inline HTML from VectorTemplate.php to distinct Mustache files.
===== Acceptance criteria
[] Isolate HTML from renderVariantsComponent() to VariantList.mustache.
[] Isolate HTML from renderActionsComponent() to PageActionMenu.mustache.
[] Isolate HTML from renderPersonalComponent() to UserMenu.mustache.
[] Add QA steps
===== QA
Visit 2 random pages on desktop site as a logged in user on https://en.wikipedia.beta.wmflabs.org/
[] Verify footer contains " This page was last edited..."
[] Verify footer contains "Text is available under the Creative Commons Attribution-ShareAlike License...".
[] Verify footer contains a mobile view link
[] Verify sidebar contains interaction, tools, print/export and languages
[x] verify "move" is available in "more" menu
[] verify search shows autocomplete results
[] Verify variant drop down menu shows on https://zh.wikipedia.beta.wmflabs.org/wiki/%E9%A6%96%E9%A1%B5 to right of discussion tab.
[] Verify Echo notifications shows up in top right
[x] Verify ULS displays when clicking on language cog on https://en.wikipedia.beta.wmflabs.org/wiki/Selenium_language_test_page
[x] Verify "add link" displays under list of languages on https://en.wikipedia.beta.wmflabs.org/wiki/Selenium_language_test_page
[] logout and verify UI is more or less the same with the exception of the personal menu in the top right.