Inline image/video resizing and cropping

[jaco777thomas]

ability to adjust the zoom and pan of the background images and videos

[beniza]

User Story

Description
Background images and videos cannot be adjusted within the editor, requiring external tools for framing.

As a video editor, I want to zoom, pan, and crop background images and videos directly on the timeline so that I can precisely frame my visual content without needing external tools.

Acceptance Criteria

• Users can zoom in/out on a background image or video clip
• Users can pan (reposition) the media within the frame
• A crop/mask tool allows trimming the visible area
• Changes are reflected in both preview and export