MC-1263: Buttons of Image Content Block are not aligned correctly

- Updated with Cr feedback

Author: nathanjosiah

app/code/Magento/PageBuilder/view/adminhtml/web/css/source/form/element/uploader/preview/_image.less

@@ -69,10 +69,10 @@
 
     ._compact-ui .file-uploader-area,
     ._micro-ui .file-uploader-area {
-            align-items: center;
-            display: flex;
-            flex-direction: column;
-            position: relative;
+        align-items: center;
+        display: flex;
+        flex-direction: column;
+        position: relative;
 
         > span {
             display: none;

app/code/Magento/PageBuilder/view/adminhtml/web/js/form/element/image-uploader.js

@@ -66,9 +66,8 @@ define([
          */
         initUploader: function (fileInput) {
             this._super(fileInput);
-            this.$uploadArea = this.$fileInput.closest('.pagebuilder-image-empty-preview');
-            new ResizeObserver(this.updateResponsiveClasses.bind(this)).observe(this.$uploadArea);
-            this.$uploadArea = $(this.$uploadArea);
+            this.$uploadArea = $(this.$fileInput).closest('.pagebuilder-image-empty-preview');
+            new ResizeObserver(this.updateResponsiveClasses.bind(this)).observe(this.$uploadArea.get(0));
         },
 
         /**