fix(client): lighten the upload icon in ImageUpload

Match the rest of the icon system: 20px, 1.5 stroke, currentColor with 0.7 opacity instead of the lucide default heavy 24/2 stroke.

client/src/Components/inputs/ImageUpload.tsx

@@ -126,7 +126,12 @@ export const ImageUpload = ({
 						onChange={(e) => handleFile(e.target.files?.[0])}
 						style={{ position: "absolute", inset: 0, opacity: 0, cursor: "pointer" }}
 					/>
-					<Upload size={24} />
+					<Upload
+						size={20}
+						strokeWidth={1.5}
+						color="currentColor"
+						style={{ opacity: 0.7 }}
+					/>
 					<Typography
 						variant="body2"
 						color="text.secondary"