* Refactor-all-the-things version of the fix for issue #573
* Migrate SpanUtils to kotlin because why not
* Minimal fix for issue #573
* Add tests for compose spanning
* Clean up code suggestions
* Make FakeSpannable.getSpans implementation less awkward
* Add secondary validation pass for urls
* Address code review feedback
* Fixup type filtering in FakeSpannable again
* Make all mentions in compose activity use the default link color
