Segmentation Component - Javascript exception in full screen edit dialog

When the edit dialog of the Segmentation Component is opened on a small viewport, in full screen mode the following exception is thrown:

```
Uncaught TypeError: Cannot read properties of undefined (reading 'parentNode')
at SegmentEditor._bindEvents (clientlibs.lc-4fa217dc28adac96d495f9a8eddb8c5c-lc.js:338:40)
at SegmentEditor._init (clientlibs.lc-4fa217dc28adac96d495f9a8eddb8c5c-lc.js:166:22)
at new SegmentEditor (clientlibs.lc-4fa217dc28adac96d495f9a8eddb8c5c-lc.js:69:14)
at HTMLElement. (clientlibs.lc-4fa217dc28adac96d495f9a8eddb8c5c-lc.js:443:17)
at Function.each (jquery.lc-676f843463ac676e1918c97ea7dc1a20-lc.js:371:19)
at jQuery.fn.init.each (jquery.lc-676f843463ac676e1918c97ea7dc1a20-lc.js:137:17)
at HTMLDocument. (clientlibs.lc-4fa217dc28adac96d495f9a8eddb8c5c-lc.js:440:46)
at HTMLDocument.dispatch (jquery.lc-676f843463ac676e1918c97ea7dc1a20-lc.js:5232:27)
at elemData.handle (jquery.lc-676f843463ac676e1918c97ea7dc1a20-lc.js:4884:28)
at Object.trigger (jquery.lc-676f843463ac676e1918c97ea7dc1a20-lc.js:5136:12)
```

Reproduce the Segmentation Component edit dialog on a small viewport in full-screen mode, then inspect SegmentEditor._bindEvents at the stack-trace location in the clientlibs JavaScript. Confirm the fix by reopening the dialog and verifying that the parentNode exception no longer occurs.

Written by the indexing model from the issue text.