Introducing CSS/Favicon (Requires SPIFFS)

[XenoXilus]

Once SPIFFS is implemented, CSS and Favicon customisation will be much easier to implement.

[layerzerolabs]

Good start - in order to support issue #12 can you try using ESPAsyncWebServer to provide a way to serve from SPIFFS please? Also please assign yourself to this issue, and also add the labels esp32 and Enhancement (helps us keep track as the numbers of issues grows...) Ta!

[hamishcunningham]

I think I've seen SPIFFS in use somewhere recently... ESPAsyncWebServer definitely a good thing for the future, but not sure how mature it is at present. Definitely a good track to look into though!

[layerzerolabs]

Can I ask @XenoXilus to choose this or issue #10 to prioritise and un-assign yourself from the other one? It helps keep track of things ta!

[XenoXilus]

Righty~ @layerzerolabs I've kept myself on #10