Remove large unused LVGL files (demos/tests/docs/examples) and build artifacts from tracking

.gitignore

@@ -43,4 +43,35 @@ ehthumbs.db
 *.temp
 
 # Linux / Mac
-.DS_Store
+.DS_Store
+
+# LVGL - Unused directories (only src/ is compiled)
+Lib/lvgl/demos/
+Lib/lvgl/tests/
+Lib/lvgl/docs/
+Lib/lvgl/libs/
+Lib/lvgl/scripts/
+Lib/lvgl/env_support/
+Lib/lvgl/examples/
+Lib/lvgl/.github/
+Lib/lvgl/.devcontainer/
+Lib/lvgl/zephyr/
+Lib/lvgl/xmls/
+Lib/lvgl/configs/
+
+# LVGL - Build system files not needed for Keil
+Lib/lvgl/CMakeLists.txt
+Lib/lvgl/CMakePresets.json
+Lib/lvgl/component.mk
+Lib/lvgl/idf_component.yml
+Lib/lvgl/Kconfig
+Lib/lvgl/library.json
+Lib/lvgl/library.properties
+Lib/lvgl/lvgl.mk
+Lib/lvgl/lvgl.pc.in
+Lib/lvgl/SConscript
+Lib/lvgl/sconscript
+
+# Binary / large files
+*.bin
+*.pyc