perf: use replaceAll instead of replacing plus

Author: anonrig

lib/parse.js

@@ -42,8 +42,8 @@ function parse(input) {
       if (i - startingIndex > 1) {
         // Optimization: Replace '+' with space
         if (hasPlus) {
-          key = key.replace(/\+/g, " ");
-          value = value.replace(/\+/g, " ");
+          key = key.replaceAll("+", " ");
+          value = value.replaceAll("+", " ");
         }
 
         // Optimization: Do not decode if it's not necessary.