[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/catchall-settings.component.ts

@@ -1,6 +1,6 @@
 import { Component, EventEmitter, Input, OnDestroy, OnInit, Output } from "@angular/core";
 import { FormBuilder } from "@angular/forms";
-import { BehaviorSubject, skip, Subject, takeUntil } from "rxjs";
+import { BehaviorSubject, map, skip, Subject, takeUntil, withLatestFrom } from "rxjs";
 
 import { AccountService } from "@bitwarden/common/auth/abstractions/account.service";
 import { UserId } from "@bitwarden/common/types/guid";
@@ -12,6 +12,11 @@ import {
 
 import { completeOnAccountSwitch } from "./util";
 
+/** Splits an email into a username, subaddress, and domain named group.
+ * Subaddress is optional.
+ */
+export const DOMAIN_PARSER = new RegExp("[^@]+@(?<domain>.+)");
+
 /** Options group for catchall emails */
 @Component({
   selector: "tools-catchall-settings",
@@ -60,7 +65,19 @@ export class CatchallSettingsComponent implements OnInit, OnDestroy {
     // the first emission is the current value; subsequent emissions are updates
     settings.pipe(skip(1), takeUntil(this.destroyed$)).subscribe(this.onUpdated);
 
-    this.settings.valueChanges.pipe(takeUntil(this.destroyed$)).subscribe(settings);
+    // now that outputs are set up, connect inputs
+    this.saveSettings
+      .pipe(
+        withLatestFrom(this.settings.valueChanges),
+        map(([, settings]) => settings),
+        takeUntil(this.destroyed$),
+      )
+      .subscribe(settings);
+  }
+
+  private saveSettings = new Subject<string>();
+  save(site: string = "component api call") {
+    this.saveSettings.next(site);
   }
 
   private singleUserId$() {
@@ -78,6 +95,7 @@ export class CatchallSettingsComponent implements OnInit, OnDestroy {
 
   private readonly destroyed$ = new Subject<void>();
   ngOnDestroy(): void {
+    this.destroyed$.next();
     this.destroyed$.complete();
   }
 }