Bug: when user clicked Preview in the left 'Analiza pesmi' panel, it
loaded an inline <video> below it. The video element grew to 400px and,
combined with the sticky positioning of the left card and grid layout,
caused the right column (jobs list) preview/download buttons to become
unclickable — the video element was effectively layering over them.
Fix: replace inline preview with the same modal that the right-side
Preview buttons use. Removes the layout conflict entirely:
- Live panel Preview button now opens the centered modal
- Removed inline #live-video element
- Removed liveVideo references from JS (resetLive)
- Job cards now have data-id and data-title attributes so the modal can
pull title for display
Both left-side (live) and right-side (jobs list) preview now use the
same clean modal experience.