[PM-9111] Extension: persist add/edit form (#12236)

* remove todo

* Retrieve cache cipher for add-edit form

* user prefilled cipher for add-edit form

* add listener for clearing view cache

* clear local cache when clearing global state

* track initial value of cache for down stream logic that should only occur on non-cached values

* add feature flag for edit form persistence

* add tests for cipher form cache service

* fix optional initialValues

* add services to cipher form storybook

* fix strict types

* rename variables to be platform agnostic

* use deconstructed collectionIds variable to avoid them be overwritten

* use the originalCipherView for initial values

* add comment about signal equality

* prevent events from being emitted when adding uris to the existing form

- This stops other values from being overwrote in the initialization process

* add check for cached cipher when adding initial uris

libs/vault/src/cipher-form/components/custom-fields/custom-fields.component.ts

@@ -148,8 +148,10 @@ export class CustomFieldsComponent implements OnInit, AfterViewInit {
       value: id,
     }));
 
-    // Populate the form with the existing fields
-    this.cipherFormContainer.originalCipherView?.fields?.forEach((field) => {
+    const prefillCipher = this.cipherFormContainer.getInitialCipherView();
+
+    // When available, populate the form with the existing fields
+    prefillCipher.fields?.forEach((field) => {
       let value: string | boolean = field.value;
 
       if (field.type === FieldType.Boolean) {