Add charge status monitoring and LED control

- Add LED_0 pin definition and charge status GPIO pin
- Implement charge status monitoring in main loop
- Add LED visual indicators for charging state
- Configure LVGL Montserrat 10 font and set as default
- Reset GPIO pins to clear SPI configurations
- Update COM port to COM14 in VSCode settings

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

.vscode/settings.json

@@ -4,7 +4,7 @@
     "idf.openOcdConfigs": [
         "board/esp32-wrover-kit-3.3v.cfg"
     ],
-    "idf.portWin": "COM4",
+    "idf.portWin": "COM14",
     "idf.toolsPathWin": "C:\\Users\\Brent.Perteet\\.espressif",
     "idf.flashType": "UART",
     "files.associations": {