Test a darker color for the background of the notes tiles

[Joe-D01]

This is probably the best notes app I've used so far, but there's one thing that annoys me for some reason—the background color of the notes.

I think it would look better if it were a bit darker.

Also, please consider adding an option to archive notes.

[maelchiotti]

Hi, I don't use the background myself so I never got bothered by it. I will test with a darker color to see if it's better!

And I also want to add archives, see #194. It expect to add it in this first half of the year!

[maelchiotti]

I've realized that the notes tiles have a different color than in the search view, which is darker. So I've made them darker just like in the search view!