Fix image print for auto feedback from code notebook

[pmalarme]

Why are these changes needed?

It solves the display of the chart in notebook/agentchat_auto_feedback_from_code_execution.ipynb. I also added .notebook in the .gitignore to be able to have a folder to update the notebooks for testing without risking to commit them.

Checks

• I've included any doc changes needed for https://microsoft.github.io/autogen/. See https://microsoft.github.io/autogen/docs/Contribute#documentation to build and test documentation locally.
• I've added tests (if relevant) corresponding to the changes introduced in this PR.
• I've made sure all auto checks have passed.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (5eaf712) 33.08% compared to head (0da7a90) 40.86%.
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1389      +/-   ##
==========================================
+ Coverage   33.08%   40.86%   +7.78%     
==========================================
  Files          42       42              
  Lines        5048     5048              
  Branches     1156     1223      +67     
==========================================
+ Hits         1670     2063     +393     
+ Misses       3250     2795     -455     
- Partials      128      190      +62     

Flag	Coverage Δ
unittests	40.86% <ø> (+7.82%)	⬆️

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[davorrunje]

Let me just understand the problem before I get on my laptop and run it myself, the issue was that the image was not displayed in notebook?

If so, wouldn't it be better to check if the file exists, load it from file and then display it? That way we know what is in the file is actually what we are looking into. Not saying the PR is wrong, but this solution would be more robust.

[pmalarme]

Let me just understand the problem before I get on my laptop and run it myself, the issue was that the image was not displayed in notebook?

If so, wouldn't it be better to check if the file exists, load it from file and then display it? That way we know what is in the file is actually what we are looking into. Not saying the PR is wrong, but this solution would be more robust.

The image does not display in GitHub Codespace. You just ask explicitly to display it and now it works.

[davorrunje]

LGTM 👍