Fix code formatting and include order

Break long line in BookMetadataCache.cpp for better readability and move include directive to top of file in Logging.cpp to follow style guidelines.

src/main.cpp

@@ -1,7 +1,5 @@
 #include <Arduino.h>
 #include <Epub.h>
-
-#include <cmath>
 #include <FontCacheManager.h>
 #include <FontDecompressor.h>
 #include <GfxRenderer.h>
@@ -13,6 +11,8 @@
 #include <HalSystem.h>
 #include <HalTiltSensor.h>
 
+#include <cmath>
+
 #if defined(FREEINK_DEVICE_LILYGO) && FREEINK_DEVICE_LILYGO
 #include <BoardT5S3.h>
 #endif