fix(player): show clear-queue confirmation when tapping a new video

[Rumi-sketches]

Summary

The "ask for confirmation before clearing a queue" setting only worked when switching the same video between player types (popup/background/main player), It never fired when tapping a different video.
The setting's actual main use case, whether from the feed, search results, or the related-items list under an expanded player.

Problem

selectAndLoadVideo(), the entry point used whenever a different video is opened from any list, had no confirmation check of its own. The existing check (replaceQueueIfUserConfirms) only ran later, inside the autoplay path triggered after the new stream's info finished loading. By that point, hideMainPlayerOnLoadingNewStream() had already torn down the active player/queue (playerHolder.stopService()), so the check always saw activeQueue == null and silently skipped the confirmation — regardless of the setting.

Changes

• Added loadVideoIfUserConfirms(), evaluated synchronously at the very top of selectAndLoadVideo(), before anything is torn down. It compares the live player's current queue item against the URL about to be loaded (since playQueue/url still reflect the old target at this point).
• Both confirmation checks (replaceQueueIfUserConfirms and the new loadVideoIfUserConfirms) now also require the active queue to have more than one item — replacing a lone, queue-less video just plays the new one immediately, no popup.

Validation

Manually tested on-device (OnePlus Open):

• Play video A (no queue) → tap video B → plays immediately, no popup (size check working).
• Play video A → enqueue video B → tap video C from feed/search → confirmation popup now appears (previously did not).
• Same scenario but tapping a related item under the expanded player instead → popup also appears (same code path).
• Confirmed via verbose logging during development that, prior to the fix, the active queue was null by the time the original check ran.