Optimize UI for 1.8 inch display: fix gauge visibility, rotating page…

[lordswift]

…s, and layout

[Keralots]

Hey @lordswift, thanks for working on this! The 1.8" display support is something people have been asking about, so it's great to see a layout contribution.

However, the PR is incomplete as-is - the layout file alone won't compile or work without a few more pieces.

To make this a functional build target:

1. Add a new build environment in platformio.ini - similar to the existing [env:cyd], with ST7735 driver, correct pins, TFT_WIDTH=128, TFT_HEIGHT=160, and a define like -D DISPLAY_1_8=1
2. Add dispatch in include/layout.h - add an #elif defined(DISPLAY_1_8) block so the layout actually gets included:

#elif defined(DISPLAY_1_8)
  #include "layout_1_8.h"    // ST7735 128x160 (1.8")

3. Verify all LY_* constants - make sure every LY_* used in the .cpp files is defined in layout_1_8.h, and remove any that aren't referenced by the code

Regarding the .3mf file:
Please remove PrintProfile/TFT 1.8 full _v1.3mf from the PR - binary files shouldn't live in the repo. You could link it in the PR description or we can attach it to a release later. Feel free to post it on Makerworld/Printables if you like

Question: Have you tested this on actual hardware (ST7735 1.8" panel)? If so, which board/wiring are you using? That info would help define the platformio.ini target.

Let me know if you need help with any of these steps!