feat: Add dedicated editor page

[1zzowiebeha]

On the tsParticles website, the editor is displayed, allowing the user to try out the creation of a custom config.

The page contents however, obscure the canvas and can lower the first impression of the tool. A user might as a work-around go into their DOM and delete the page contents to get an unobstructed view of the canvas.

Solution:
It would be awesome to have a dedicated editor page linked to on the homepage, instead of displaying everything in one place.

An alternative might be to add a sticky button that will toggle the visibility of the homepage contents, allowing for a full view of the canvas.