fix: use <strong> instead of ** bold in <summary> elements

[Copilot]

Markdown **bold** syntax is not processed inside HTML elements, so the firewall warning summary rendered as literal **⚠️ Firewall blocked 2 domains** instead of bold text.

Changes

• firewall_blocked_domains.cjs: Replace **...** with <strong>...</strong> in the <summary> tag
• firewall_blocked_domains.test.cjs: Update assertions to match new HTML output

- section += `> <summary>**⚠️ Firewall blocked ${domainCount} ${domainWord}**</summary>\n`;
+ section += `> <summary><strong>⚠️ Firewall blocked ${domainCount} ${domainWord}</strong></summary>\n`;

[Copilot]

Pull request overview

Fixes the firewall warning <summary> text rendering as literal Markdown (e.g., **...**) by switching to HTML <strong> so the summary is actually bold when rendered.

Changes:

• Update generateBlockedDomainsSection() to use <strong> inside the <summary> instead of **...**.
• Update Vitest assertions to match the new HTML output.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
actions/setup/js/firewall_blocked_domains.cjs	Replaces Markdown bold syntax with <strong> within the <summary> HTML for correct rendering.
actions/setup/js/firewall_blocked_domains.test.cjs	Updates expected strings to assert against the new <strong>-wrapped summary content.

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