feat: custom app icon (#7196)

Co-authored-by: crazywoola <427733928@qq.com>

web/app/components/base/app-icon-picker/hooks.tsx

@@ -0,0 +1,43 @@
+import { useCallback, useState } from 'react'
+
+export const useDraggableUploader = <T extends HTMLElement>(setImageFn: (file: File) => void) => {
+  const [isDragActive, setIsDragActive] = useState(false)
+
+  const handleDragEnter = useCallback((e: React.DragEvent<T>) => {
+    e.preventDefault()
+    e.stopPropagation()
+    setIsDragActive(true)
+  }, [])
+
+  const handleDragOver = useCallback((e: React.DragEvent<T>) => {
+    e.preventDefault()
+    e.stopPropagation()
+  }, [])
+
+  const handleDragLeave = useCallback((e: React.DragEvent<T>) => {
+    e.preventDefault()
+    e.stopPropagation()
+    setIsDragActive(false)
+  }, [])
+
+  const handleDrop = useCallback((e: React.DragEvent<T>) => {
+    e.preventDefault()
+    e.stopPropagation()
+    setIsDragActive(false)
+
+    const file = e.dataTransfer.files[0]
+
+    if (!file)
+      return
+
+    setImageFn(file)
+  }, [setImageFn])
+
+  return {
+    handleDragEnter,
+    handleDragOver,
+    handleDragLeave,
+    handleDrop,
+    isDragActive,
+  }
+}