feat(travel): Implement settings UI and web server for MTR route configuration

- Added MainUIHandler class to manage the main UI and polling for arrival data.
- Introduced SettingsUI class for displaying QR code and configuration options.
- Created SettingsUIHandler to manage settings UI lifecycle and web server interactions.
- Developed WebHandler to handle HTTP requests for MTR route settings, including adding and removing routes.
- Implemented web endpoints for fetching MTR lines, routes, and saving settings.
- Enhanced UI with responsive design for e-ink displays and added error handling for web interactions.

main/external/mtr/line_info.cpp

@@ -17,6 +17,14 @@ LineInfo::LineInfo(cJSON* line_json) {
     ESP_LOGW(LINE_INFO_TAG, "Missing or invalid 'code' field");
   }
 
+  // Parse line name
+  cJSON* name_json = cJSON_GetObjectItem(line_json, "name");
+  if (name_json && cJSON_IsString(name_json)) {
+    _name = name_json->valuestring;
+  } else {
+    ESP_LOGW(LINE_INFO_TAG, "Missing or invalid 'name' field");
+  }
+
   // Parse line color (note: field is 'line_color' in JSON, not 'color')
   cJSON* color_json = cJSON_GetObjectItem(line_json, "line_color");
   if (color_json && cJSON_IsString(color_json)) {