Fix base href replacement in GitHub Pages deployment

[Copilot]

The app fails on GitHub Pages with 404 errors for all resources. The deployment workflow's sed command doesn't match the actual HTML format in index.html, leaving base href as / instead of /SoundTest/.

Changes

• Updated sed pattern in .github/workflows/main.yml to match actual HTML format

Before:

sed -i 's/<base href="\/" \/>/<base href="\/SoundTest\/" \/>/g'

Pattern expects: <base href="/" /> (with space)

After:

sed -i 's|<base href="/"|<base href="/SoundTest/"|g'

Matches actual: <base href="/"/> (no space)

Original prompt

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This section details on the original issue you should resolve

<issue_title>The published app does not work</issue_title>
<issue_description></issue_description>

<agent_instructions>Please figure out why the app is broken on GitHub Pages after being published. Keep in mind it works perfectly when debugging locally.</agent_instructions>

Comments on the Issue (you are @copilot in this section)

• Fixes The published app does not work #35

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