- Removing existing content viewer application.
- Introduced new front end based content viewer applicaiton.
- Introduced new bundled content viewers for hex and images.
- Deleted previous image content viewer.
- Migrated existing standard content viewer (which handles json, xml, yaml, csv, and text) to utilize new content access interface.
- Moved standard content viewer into its own NAR.
- Moved and renamed custom ui utils and content viewer utils into nifi-common.
- Added mime type to FlowFileSummary response payload to help drive the initially opened content viewer.

- Rendering mime type in the content viewer.
- Preventing additions to the browser history as the user changes how the content is viewed.
- Appending forward slash to content viewer UIs to prevent unnecessary redirect.
- Removing Standard Content Viewer title based on review feedback.
- Fixing double scroll bar in the Standard Content Viewer on small browser heights.
- Removed unnecessary application.yml.
- Bumping spring boot version.