Continued work on the contextual docs

Passes help path and registry url into the Vue app
Display the registry url in setup
Link to the npm package documentation page
Added registry url helper
Added tests
Updated pot

locale/gitlab.pot

@@ -11875,9 +11875,6 @@ msgstr ""
 msgid "Package information"
 msgstr ""
 
-msgid "Package installation"
-msgstr ""
-
 msgid "Package was removed"
 msgstr ""