### What?
Fixes#12171
### Why?
Previously, the ImageMedia component was not properly handling URL
formatting when a serverURL was configured in Payload. This caused
images to fail to load when using a custom serverURL. By extracting the
URL handling logic into a separate utility function, we ensure
consistent URL processing across both image and video components.
### How?
1. Created a new utility function getMediaUrl in
`src/utilities/getMediaUrl.ts` that:
- Properly checks for HTTP/HTTPS protocols
- Handles null or undefined URL values
- Supports cache tags to prevent caching issues
- Uses `getClientSideURL()` for relative paths
2. Updated the ImageMedia component to use this utility function instead
of inline URL processing logic
3. Updated the VideoMedia component to also use the same utility
function for consistency
18693775e4