Link between dags and variables

### Description For airflow v3.0.6 Firstly, is that possible to add a feature to directly jump to/view the DAG's respective variable definition instead of searching for it if the dag is tagged to a variable? Secondly, the scheduled time in the UI doesn’t update when I change the timezone. and show the timezone reference. -- ### Use case/motivation _No response_ ### Related issues _No response_ ### Are you willing to submit a PR? - [ ] Yes I am willing to submit a PR! ### Code of Conduct - [x] I agree to follow this project's [Code of Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)