Use string.replaceAll() shim rather than regex

Resolves #19

Author: mheap

package-lock.json

@@ -19,6 +19,7 @@
   "dependencies": {
     "@octokit/rest": "^18.0.0",
     "prompt-confirm": "^2.0.4",
+    "string.prototype.replaceall": "^1.0.3",
     "yargs": "^15.3.1"
   },
   "bin": {

package.json

@@ -1,3 +1,5 @@
+const replaceAll = require("string.prototype.replaceall");
+
 module.exports = async function (
   owner,
   repo,
@@ -27,7 +29,7 @@ module.exports = async function (
       let content = file.content;
       for (let r of replacements[path]) {
         var re = new RegExp(r.from, "g");
-        content = content.replace(re, r.to);
+        content = replaceAll(content, r.from, r.to);
       }
 
       if (content !== file.content) {