ledmatrix: Upgrade to v0.4.0

Simplify the code.

Signed-off-by: Daniel Schaefer <dhs@frame.work>

Author: JohnAZoidberg

Cargo.lock

@@ -36,8 +36,7 @@ heapless = "0.7.16"
 usbd-serial = "0.1.1"
 usbd-hid = "0.6.1"
 fugit = "0.3.7"
-# LED Matrix
-is31fl3741 = "0.3.0"
+is31fl3741 = { version = "0.4.0", features = ["framework_ledmatrix"] }
 # B1 Display
 st7306 = { git = "https://github.com/FrameworkComputer/st7306-rs", branch = "update-deps" }
 embedded-graphics = "0.8"