Revert "bump body-scroll-lock"

This reverts commit 6e0b3d1.

Author: furudean

package-lock.json

@@ -19,7 +19,7 @@
 	},
 	"dependencies": {
 		"@mdi/js": "^7.4.47",
-		"body-scroll-lock": "^4.0.0-beta.0",
+		"body-scroll-lock": "^3.1.5",
 		"canvas-confetti": "^1.9.4",
 		"common-tags": "^1.8.2",
 		"dialog-polyfill": "^0.5.6",