Lexical: Further fixes

- Improved node resizer positioning to be more accurate
- Fixed drop handling not running within editor margin space
- Made media dom update smarter to reduce reloads
- Fixed media alignment, broken due to added wrapper

resources/sass/_editor.scss

@@ -374,10 +374,21 @@ body.editor-is-fullscreen {
 }
 
 .editor-media-wrap {
+  display: inline-block;
   cursor: not-allowed;
   iframe {
     pointer-events: none;
   }
+  &.align-left {
+    float: left;
+  }
+  &.align-right {
+    float: right;
+  }
+  &.align-center {
+    display: block;
+    margin-inline: auto;
+  }
 }
 
 /**