account for lack of trailing slash in url

ts/admin.ts

@@ -89,7 +89,7 @@ for (let tab of ["invites", "accounts", "settings"]) {
     }
 }
 
-if (window.location.pathname == window.URLBase + "/") {
+if ((window.URLBase + "/").includes(window.location.pathname)) {
     window.tabs.switch("invites", true);
 }
 

ts/modules/invites.ts

@@ -45,6 +45,7 @@ export class DOMInvite implements Invite {
         for (let split of ["#", "?"]) {
             codeLink = codeLink.split(split)[0];
         }
+        if (codeLink.slice(0, -1) != "/") { codeLink += "/"; }
         this._codeLink = codeLink + "invite/" + code;
         const linkEl = this._codeArea.querySelector("a") as HTMLAnchorElement;
         if (this.label == "") {