[Enhancement]: Discord server icon in the background of the "close" button or something is not good.

### Describe Your Request ## Outline Buttons and server icons are covered and have low visibility. ## Approach - Place a semi-transparent or normal View in the background of the button. - Any ideas? ### Category Other ### Other Category UI components ### Screenshots <img width="422" alt="スクリーンショット 2024-04-09 18 11 44" src="https://github.com/SwiftcordApp/Swiftcord/assets/40351476/d146843b-a559-44e6-bbeb-50c91c161c4b">