[PM-24304][PM-24305] - [Defect] Some fields are not disabled when editing an item from My Vault (#15982)

* disable all remaining form fields for editing personally owned My Items

* fix failing tests

* ensure collection field is also properly disabled

* clean up logic

* fix failing test

* fix test

* refactor variable to avoid using `is` prefix

* directly reference parent form for status rather than subscribe to it

* refactor subscription for form status changes

* use observable as an Output

* disable attachment button on desktop vault when the form

* disable custom field components when custom fields already exist and parent form is disabled

* disable attachments button in the browser when the edit form is disabled

* grab icon button instance for disabled state

---------

Co-authored-by: Nick Krantz <nick@livefront.com>

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

@@ -93,6 +93,7 @@
           bitIconButton="bwi-pencil-square"
           class="tw-self-center tw-mt-2"
           data-testid="edit-custom-field-button"
+          [disabled]="parentFormDisabled"
           *ngIf="canEdit(field.value.type)"
         ></button>
 
@@ -104,6 +105,7 @@
           [label]="'reorderToggleButton' | i18n: field.value.name"
           (keydown)="handleKeyDown($event, field.value.name, i)"
           data-testid="reorder-toggle-button"
+          [disabled]="parentFormDisabled"
           *ngIf="canEdit(field.value.type)"
         ></button>
       </div>
@@ -113,7 +115,8 @@
         bitLink
         linkType="primary"
         (click)="openAddEditCustomFieldDialog()"
-        *ngIf="!isPartialEdit"
+        data-testid="add-field-button"
+        *ngIf="!isPartialEdit && !parentFormDisabled"
       >
         <i class="bwi bwi-plus tw-font-bold" aria-hidden="true"></i>
         {{ "addField" | i18n }}