Use sane smaller data types for data in section.bin (#188)

## Summary

* Update EpdFontFamily::Style to be u8 instead of u32 (saving 3 bytes
per word)
* Update layout width/height to be u16 from int
* Update page element count to be u16 from u32
* Update text block element count to be u16 from u32
* Bumped section bin version to version 8

src/activities/network/NetworkModeSelectionActivity.cpp

@@ -97,7 +97,7 @@ void NetworkModeSelectionActivity::render() const {
   const auto pageHeight = renderer.getScreenHeight();
 
   // Draw header
-  renderer.drawCenteredText(UI_12_FONT_ID, 15, "File Transfer", true, BOLD);
+  renderer.drawCenteredText(UI_12_FONT_ID, 15, "File Transfer", true, EpdFontFamily::BOLD);
 
   // Draw subtitle
   renderer.drawCenteredText(UI_10_FONT_ID, 50, "How would you like to connect?");