Use query parameter instead of hash to select dialog

src/utils.ts

@@ -18,15 +18,15 @@ function isValidDialogSetName(input: unknown) {
   return !/[^a-zA-Z0-9\-\_]/i.test(input);
 }
 
-function getHashValue(): string {
-  return window.location.hash.substr(1);
+function getParamValue(paramName: string): string | null {
+  return new URLSearchParams(window.location.search).get(paramName);
 }
 
 /**
  * Fetch a dialogSet based on the hash value
  */
 export async function fetchDialogSet(): Promise<DialogSet> {
-  const setName = getHashValue();
+  const setName = getParamValue("dialogSet");
   if (!isValidDialogSetName(setName))
     throw new Error("Name is not valid dialogSet name");