[AC-1782] Flexible collections import behavior in Password Manager and Admin Console (#6888)

* Added logic to only return organisations where user has import permissions and collections that he manages on Import

* Changed the UnassignedCollections validation logic

* Added validation to check if the user is coming from AdminConsole on the import component

* Added import collection service abstraction to allow get admin collections

* Corrected feature flag reads on import component

* Refactor import component methods ngOnInit and performImport to improve codescene
Using FeatureFlag Observable

* Modified validation to allow import if user has organizations to import into

* Using the new organization flexiblecollections property on import

* Created collection-admin-import.service to return all the org collections to the import on Admin Console

* Small changes on import flexible collections

* Fix linting issues

* changed canAccessImport rules and deprecated canAccessImportExport

* Validating if user canAccessImportExport instead of admin before calling the handleOrganizationImportInit.

* AC-2095 - Corrected getAllAdminCollections from ImportCollectionAdminService to properly get all the collections on AdminConsole

* Reverting AC-2095

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Co-authored-by: Daniel James Smith <djsmith85@users.noreply.github.com>

apps/web/src/app/admin-console/organizations/settings/organization-settings-routing.module.ts

@@ -49,8 +49,8 @@ const routes: Routes = [
           {
             path: "import",
             loadComponent: () =>
-              import("../../../tools/import/import-web.component").then(
-                (mod) => mod.ImportWebComponent,
+              import("../../../tools/import/admin-import.component").then(
+                (mod) => mod.AdminImportComponent,
               ),
             canActivate: [OrganizationPermissionsGuard],
             data: {