[PM-13876] replace angular validation with html constraints validation (#11816)

* rough-in passphrase validation failure handling

* trigger valid change from settings

* fix `max` constraint enforcement

* add taps for generator validation monitoring/debugging

* HTML constraints validation rises like a phoenix

* remove min/max boundaries to fix chrome display issue

* bind settings components as view children of options components

* remove defunct `okSettings$`

* extend validationless generator to passwords

* extend validationless generator to catchall emails

* extend validationless generator to forwarder emails

* extend validationless generator to subaddress emails

* extend validationless generator to usernames

* fix observable cycle

* disable generate button when no algorithm is selected

* prevent duplicate algorithm emissions

* add constraints that assign email address defaults

libs/tools/generator/components/src/username-generator.component.ts

@@ -322,7 +322,7 @@ export class UsernameGeneratorComponent implements OnInit, OnDestroy {
         if (!a || a.onlyOnRequest) {
           this.value$.next("-");
         } else {
-          this.generate("autogenerate");
+          this.generate("autogenerate").catch((e: unknown) => this.logService.error(e));
         }
       });
     });
@@ -414,7 +414,7 @@ export class UsernameGeneratorComponent implements OnInit, OnDestroy {
    * @param requestor a label used to trace generation request
    *  origin in the debugger.
    */
-  protected generate(requestor: string) {
+  protected async generate(requestor: string) {
     this.generate$.next(requestor);
   }
 
@@ -429,6 +429,7 @@ export class UsernameGeneratorComponent implements OnInit, OnDestroy {
 
   private readonly destroyed = new Subject<void>();
   ngOnDestroy() {
+    this.destroyed.next();
     this.destroyed.complete();
 
     // finalize subjects