About Crop And Lock (shadow toggle request)

### Description of the new feature / enhancement

希望能讓使用者去調整擷取後呈現的視窗，目前底下都會有一層陰影，希望能讓使用者控制是否要開啟

*English translation:* I'd like users to be able to adjust the window shown after capturing. Currently there is a shadow layer underneath the window — please let users control whether this shadow is enabled.

### Scenario when this would be used?

目前的使用狀況會是將圖片和在製作的物品進行比較，但因為有陰影那層黑色的效果因此沒辦法進行比較正確的調整

*English translation:* My current use case is comparing a captured image with an item I'm working on, but because of the black shadow effect layer I can't make an accurate side-by-side comparison/adjustment.

### Supporting information

No response

The issue names Crop And Lock and the post-capture window's shadow layer, but no files, tests, or entry points. Start by locating the Crop And Lock implementation and its existing shadow handling. Done means users can control whether the shadow is enabled when comparing a captured image with another item.

Written by the indexing model from the issue text.