userpage: add password reset direct link

for #363, adds /my/account/password/reset. Navigate to it to skip
    pressing the "forgot password?" button on the login screen. Works
    with the nice-ish onpopstate override thing I put in setup.ts a
    while ago. Maybe I should make it a module.

ts/typings/d.ts

@@ -2,7 +2,7 @@ declare interface Modal {
     modal: HTMLElement;
     closeButton: HTMLSpanElement
     show: () => void;
-    close: (event?: Event) => void;
+    close: (event?: Event, noDispatch?: boolean) => void;
     toggle: () => void;
     onopen: (f: () => void) => void;
     onclose: (f: () => void) => void;