Visual Studio: work in all file types

[chrissimon-au]

Describe the bug Visual Studio supports defining a content type by extension. Testing by @FH-Inway of the use of .* content type suggests it works in some files (.yml, .cs) but not others (.txt, .md)

To Reproduce Open a folder with a .contextive/definitions.yml file in a Visual Studio instance with Contextive installed.

See the hover text appear in a .yml file when hovering over a defined term. Add the term to a .txt file and no hover will appear.

Expected behavior The hover panel/definition should appear in all files.