Resolve "Removing an image via Web IDE shows binary data"

What does this MR do?

Resolves #60856 (closed)

In essence, when deleting or re-naming a binary file, we need to fetch it's content and raw information before it can be previewed on Commit view.

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation created/updated or follow-up review issue created
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Performance and testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• Tested in all supported browsers