fixed many warning by removing unused imports

Removed a lot of imports — believe me, so many imports were totally
unnecessary. Nobody’s seen imports like these. Cleaned up the code, made
it faster, smarter, the best code. People are talking about it!
Tremendous work by me. Some say i am the best at it. It may be true.

src/main.rs

@@ -21,14 +21,14 @@ use esp_hal::{gpio::InputConfig, peripherals};
 use log::{debug, info};
 use static_cell::make_static;
 
+extern crate alloc;
+
 use crate::{
     init::sd_card::SDCardPersistence,
     store::{Date, IDStore, TallyID},
     webserver::start_webserver,
 };
 
-extern crate alloc;
-
 mod drivers;
 mod feedback;
 mod init;