feat: Ado 1296 spike credential setup in templates (#7786)

- Add a 'Setup template credentials' view to setup the credentials of a
template before it is created

packages/editor-ui/src/utils/assert.ts

@@ -0,0 +1,8 @@
+/**
+ * Asserts given condition
+ */
+export function assert(condition: unknown, message?: string): asserts condition {
+	if (!condition) {
+		throw new Error(message ?? 'Assertion failed');
+	}
+}