add ecg modalitiy to basic viewer

modes/longitudinal/src/index.ts

@@ -8,7 +8,8 @@ import { performCustomizations } from './customizations';
 
 // Allow this mode by excluding non-imaging modalities such as SR, SEG
 // Also, SM is not a simple imaging modalities, so exclude it.
-const NON_IMAGE_MODALITIES = ['ECG', 'SEG', 'RTSTRUCT', 'RTPLAN', 'PR'];
+// const NON_IMAGE_MODALITIES = ['ECG', 'SEG', 'RTSTRUCT', 'RTPLAN', 'PR']; // Ini default
+const NON_IMAGE_MODALITIES = ['SEG', 'RTSTRUCT', 'RTPLAN', 'PR']; // Biar bisa open ECG by default
 
 const ohif = {
   layout: '@ohif/extension-default.layoutTemplateModule.viewerLayout',