Snippet search

[dane-johnson]

Description

You can use fuzzy searching to find a snippet across all the snippets that you have access to.

Motivation and Context

Closes #489

Checklist:

• [x] My code follows the code style of this project.
• [x] I have added tests to cover my changes.
• [x] All new and existing tests passed.

Browsers

• [ ] Chrome
• [x] Firefox
• [ ] Safari
• [ ] Mobile:
• [ ] Other:

Screenshots (if appropriate):

[thebho]

I like the functionality, but something feels unfinished with the modal. Maybe it could use a black header and an x like the Centred popup (Lightbox) on this sight https://wet-boew.github.io/v4.0-ci/demos/overlay/overlay-en.html