Removing the selected image and clearing the dropdzone on dialog close.

Towards #741

Signed-off-by: Abijeet <abijeetpatro@gmail.com>

resources/assets/js/vues/image-manager.js

@@ -43,6 +43,8 @@ const methods = {
 
     hide() {
         this.showing = false;
+        this.selectedImage = false;
+        this.$refs.dropzone.onClose();
         this.$el.children[0].components.overlay.hide();
     },
 
@@ -175,4 +177,4 @@ module.exports = {
     data,
     computed,
     components: {dropzone},
-};
+};