update maisi contorlnet train config file

[guopengf]

Fixes # .

Description

Refactor the controlnet train configuration to reuse the network definition in config_maisi.json, which can reduce redundancy.

Checks

• Avoid including large-size files in the PR.
• Clean up long text outputs from code cells in the notebook.
• For security purposes, please check the contents and remove any sensitive info such as user names and private key.
• Ensure (1) hyperlinks and markdown anchors are working (2) use relative paths for tutorial repo files (3) put figure and graphs in the ./figure folder
• Notebook runs automatically ./runner.sh -t <path to .ipynb file>