Delete snippet

## Description
Reformatted the snippet layout using flex displays. Added a delete functionality to the note taking with a two step delete/confirm process. The confirm delete dialogue should escape when cancel is clicked or another X is click on a different snippet.

In addition, all the pages were boosted to HTML 5 so there were breaking changes specifically on the login page, so there is some testing that needs to be done there as well.

### Testing Considerations
* [x] You can delete a snippet.
* [x] Resizing window doesn't break any layout formatting.
* [x] Escaping or canceling a delete confirmation works as expected.
* [x] Ensure the radial gradient on the login is working
* [x] Ensure the login has the correct prompts (enter, forgot?)

### Known Bugs
When escaping from delete dialogue box by clicking another snippets X you should be prompted to confirm a delete on that new snippet. This does not work 100% off the time, usually clicking on snippets above the currently selected.