feat: External Secrets storage for credentials (#6477)

Github issue / Community forum post (link here to close automatically):

---------

Co-authored-by: Romain Minaud <romain.minaud@gmail.com>
Co-authored-by: Valya Bullions <valya@n8n.io>
Co-authored-by: Csaba Tuncsik <csaba@n8n.io>
Co-authored-by: Giulio Andreini <g.andreini@gmail.com>
Co-authored-by: Omar Ajoue <krynble@gmail.com>

packages/editor-ui/src/stores/ui.store.ts

@@ -29,6 +29,7 @@ import {
 	WORKFLOW_ACTIVE_MODAL_KEY,
 	WORKFLOW_SETTINGS_MODAL_KEY,
 	WORKFLOW_SHARE_MODAL_KEY,
+	EXTERNAL_SECRETS_PROVIDER_MODAL_KEY,
 	SOURCE_CONTROL_PUSH_MODAL_KEY,
 	SOURCE_CONTROL_PULL_MODAL_KEY,
 	DEBUG_PAYWALL_MODAL_KEY,
@@ -143,6 +144,9 @@ export const useUIStore = defineStore(STORES.UI, {
 			[SOURCE_CONTROL_PULL_MODAL_KEY]: {
 				open: false,
 			},
+			[EXTERNAL_SECRETS_PROVIDER_MODAL_KEY]: {
+				open: false,
+			},
 			[DEBUG_PAYWALL_MODAL_KEY]: {
 				open: false,
 			},