* Handle links to empty-string href, resolved against base href
Needed to change the URLs used in E2E tests to be able to cover this (i.e., removed the /RouterTest prefixes so the default relative URL became an empty string)
* Change links in StandaloneApp sample to be relative
* Standardize on base URIs having trailing slash everywhere
Hence also change terminology from "base URI prefix" to simply "base URI"
* Handle link highlighting when visiting base-href-but-without-trailing-slash
* Removing leading slashes from base-relative URLs in templates
* Upgrade to bootstrap v4
Remove redundant MIME type
* Add new styling to StandaloneApp
* Update THIRD-PARTY-NOTICES.txt
* Update version of Blazor used by templates when running from source
* Update styling on BlazorStandalone.CSharp template
* Tweak brace style
* Update styling in BlazorHosted.CSharp template
* Update E2E tests that rely on specific CSS
* Add Open Ionic fonts license to notices too
Steve Sanderson
Luke Latham
Ryan Nowak