#1515 Add .vue to file.patterns.html

[SilverDirk]

The Vue 3 framework uses component template files that parse as HTML, with extension ".vue"

https://vuejs.org/examples/#hello-world

Vue has quite a large following, and I think it would make sense to add it to the default list of HTML file extensions.

[Neil Hodgson]

OK, committed as [24e455].

[SilverDirk]

Thanks!