Feature: context-based default camera

- Specify the default camera (front / back) to use

src/components/ImageMethodDialog.vue

@@ -271,6 +271,11 @@ const inputImageFileNameRef = ref<Blob>();
       type: Boolean,
       default: true,
     },
+    defaultCameraMode: {
+      type: String,
+      default: 'environment',
+      validator: (value: string) => ['environment', 'user'].includes(value)
+    }
   },
 })
 export default class ImageMethodDialog extends Vue {
@@ -378,6 +383,7 @@ export default class ImageMethodDialog extends Vue {
     this.crop = !!crop;
     this.imageCallback = setImageFn;
     this.visible = true;
+    this.currentFacingMode = this.defaultCameraMode as 'environment' | 'user';
 
     // Start camera preview immediately if not on mobile
     if (!this.platformCapabilities.isNativeApp) {