[PM-25682] Migrate CipherView and subviews to be TS strict compliant (#16463)

* [PM-25682] Remove ts-strict-ignore from Vault view models and update types to be strict

* [PM-25682] Ignore ViewEncryptableKeys error for old decrypt methods

* [PM-25682] Add null/undefined as possible types for isNull* and other helpers that include null checks internally

* [PM-25682] Use patchValue instead of setValue which does not support undefined values

* [PM-25682] Add type assertions and other misc. null checks where necessary

* [PM-25682] Fix importers specs

* [PM-25682] Cleanup card view/details

* [PM-25682] Fix cipher view hasAttachment helper

* [PM-25682] Cleanup unecessary null assignments in notification.background.spec.ts

* [PM-25682] Ensure linkedId is undefined instead of null

* [PM-25682] Cleanup misc typing errors

* [PM-25682] Make the CipherId required

* [PM-25682] Undo CipherId assertions

* [PM-25682] Undo brand initial value change

* [PM-25682] Update SshKeyView

* [PM-25682] Add constructor to Fido2CredentialView

* [PM-25682] Prettier

* [PM-25682] Fix strict type warnings after merge with main

* [PM-25682] Cleanup cipher view spec

* [PM-25682] Cleanup new type warnings after merge

* [PM-25682] Undo removed eslint-disable-next-line comment

* [PM-25682] Fix flaky test

* [PM-25682] Use satisfies instead of as for Fido2CredentialAutofillView

libs/vault/src/cipher-view/custom-fields/custom-fields-v2.component.ts

@@ -44,7 +44,7 @@ import { VaultAutosizeReadOnlyTextArea } from "../../directives/readonly-textare
 export class CustomFieldV2Component implements OnInit, OnChanges {
   @Input({ required: true }) cipher!: CipherView;
   fieldType = FieldType;
-  fieldOptions: Map<number, LinkedMetadata> | null = null;
+  fieldOptions: Map<number, LinkedMetadata> | undefined;
 
   /** Indexes of hidden fields that are revealed */
   revealedHiddenFields: number[] = [];
@@ -124,7 +124,7 @@ export class CustomFieldV2Component implements OnInit, OnChanges {
       case CipherType.Identity:
         return IdentityView.prototype.linkedFieldOptions;
       default:
-        return null;
+        return undefined;
     }
   }
 }