[Feat] Download PLS from API

src/aura/ui/composables/plsConfigManager.js

@@ -28,18 +28,7 @@ const updatePlsRulesFromLocal = async () => {
   return plsRules;
 };
 
-/**
- *
- * @returns {string}
- */
-const genRandomHex = () => {
-  let result = "";
-  for (let i = 0; i < 8; i++) {
-    const randomNum = Math.floor(Math.random() * 0x10000);
-    result += randomNum.toString(16).padStart(4, "0");
-  }
-  return result;
-};
+const { genRandomHex } = require("../../utils/crypto");
 
 /**
  *