feat: enable license support for images

refs #185

src/components/images/ImageUploader.vue

@@ -48,6 +48,8 @@ function newImage(file: File, content: string): NewImage {
     image: content,
     file,
     altText: file.name,
+    isUseExplicitlyGrantedByAuthor: false,
+    licenseId: null,
     credits: '',
     width: 0,
     height: 0,