fix flaky playwright test triggered by ag2 rename

[davorinrusevljan]

Description

fix flaky playwright test that started failing after renaming to ag2.

pre-commit tests are failing unrelated to changes in this PR - probably due to the state of the main

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
e2e/llm-sans/main.py	0.00%	1 Missing ⚠️

Files with missing lines	Coverage Δ
e2e/llm-sans/main.py	45.94% <0.00%> (ø)

... and 1 file with indirect coverage changes

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