Start with isLEDChanged set

If we start with isLEDChanged unset, then after flashing, the `R0C0` key will
remain lit, because we think it is off, while it is not. Setting this flag
results in the first update cycle updating everything, no matter what, which is
the safest thing we can do.

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>

src/Kaleidoscope-Hardware-Model01.cpp

@@ -3,7 +3,7 @@
 
 KeyboardioScanner Model01::leftHand(0);
 KeyboardioScanner Model01::rightHand(3);
-bool Model01::isLEDChanged;
+bool Model01::isLEDChanged = true;
 
 static constexpr uint8_t key_led_map[4][16] = {
   {3,4,11,12,19,20,26,27,     36,37,43,44,51,52,59,60},