[Page Shield] Add new nav instructions

[pedrosousa]

Summary

Addresses PCX-17419.

Documentation checklist

• The documentation style guide has been adhered to.

[hyperlint-ai]

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PR Change Summary

Updated Page Shield documentation to reflect new navigation instructions and terminology changes.

• Renamed various sections and titles to simplify navigation, including changing 'Page Shield alerts' to 'Alerts'.
• Updated descriptions to clarify the focus on client-side resource monitoring.
• Modified links to ensure consistency with the new terminology and navigation structure.

Modified Files

• src/content/docs/page-shield/alerts/alert-types.mdx
• src/content/docs/page-shield/alerts/configure.mdx
• src/content/docs/page-shield/alerts/index.mdx
• src/content/docs/page-shield/best-practices/handle-an-alert.mdx
• src/content/docs/page-shield/best-practices/index.mdx
• src/content/docs/page-shield/detection/monitor-connections-scripts.mdx
• src/content/docs/page-shield/detection/review-changed-scripts.mdx
• src/content/docs/page-shield/detection/review-malicious-scripts.mdx
• src/content/docs/page-shield/get-started.mdx
• src/content/docs/page-shield/how-it-works/index.mdx
• src/content/docs/page-shield/how-it-works/malicious-script-detection.mdx
• src/content/docs/page-shield/index.mdx
• src/content/docs/page-shield/policies/create-dashboard.mdx
• src/content/docs/page-shield/policies/csp-directives.mdx
• src/content/docs/page-shield/policies/index.mdx
• src/content/docs/page-shield/policies/violations.mdx
• src/content/docs/page-shield/reference/page-shield-api.mdx
• src/content/docs/page-shield/reference/settings.mdx
• src/content/docs/page-shield/troubleshooting.mdx

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[github-actions]

This pull request requires reviews from CODEOWNERS as it changes files that match the following patterns:

Pattern	Owners
/src/content/docs/page-shield/	@pedrosousa, @cloudflare/pcx-technical-writing
*	@cloudflare/pcx-technical-writing

[github-actions]

Preview URL: https://38bf2ca5.preview.developers.cloudflare.com
Preview Branch URL: https://pedro-pcx-17419-new-nav-q2-page-shield-update.preview.developers.cloudflare.com

Files with changes (up to 15)

Original Link	Updated Link
https://developers.cloudflare.com/page-shield/reference/settings/	https://pedro-pcx-17419-new-nav-q2-page-shield-update.preview.developers.cloudflare.com/page-shield/reference/settings/
https://developers.cloudflare.com/page-shield/detection/monitor-connections-scripts/	https://pedro-pcx-17419-new-nav-q2-page-shield-update.preview.developers.cloudflare.com/page-shield/detection/monitor-connections-scripts/
https://developers.cloudflare.com/page-shield/policies/create-dashboard/	https://pedro-pcx-17419-new-nav-q2-page-shield-update.preview.developers.cloudflare.com/page-shield/policies/create-dashboard/
https://developers.cloudflare.com/page-shield/detection/review-malicious-scripts/	https://pedro-pcx-17419-new-nav-q2-page-shield-update.preview.developers.cloudflare.com/page-shield/detection/review-malicious-scripts/
https://developers.cloudflare.com/page-shield/get-started/	https://pedro-pcx-17419-new-nav-q2-page-shield-update.preview.developers.cloudflare.com/page-shield/get-started/
https://developers.cloudflare.com/page-shield/policies/csp-directives/	https://pedro-pcx-17419-new-nav-q2-page-shield-update.preview.developers.cloudflare.com/page-shield/policies/csp-directives/
https://developers.cloudflare.com/page-shield/how-it-works/malicious-script-detection/	https://pedro-pcx-17419-new-nav-q2-page-shield-update.preview.developers.cloudflare.com/page-shield/how-it-works/malicious-script-detection/
https://developers.cloudflare.com/page-shield/best-practices/handle-an-alert/	https://pedro-pcx-17419-new-nav-q2-page-shield-update.preview.developers.cloudflare.com/page-shield/best-practices/handle-an-alert/
https://developers.cloudflare.com/page-shield/policies/	https://pedro-pcx-17419-new-nav-q2-page-shield-update.preview.developers.cloudflare.com/page-shield/policies/
https://developers.cloudflare.com/page-shield/troubleshooting/	https://pedro-pcx-17419-new-nav-q2-page-shield-update.preview.developers.cloudflare.com/page-shield/troubleshooting/
https://developers.cloudflare.com/page-shield/policies/violations/	https://pedro-pcx-17419-new-nav-q2-page-shield-update.preview.developers.cloudflare.com/page-shield/policies/violations/
https://developers.cloudflare.com/page-shield/alerts/	https://pedro-pcx-17419-new-nav-q2-page-shield-update.preview.developers.cloudflare.com/page-shield/alerts/
https://developers.cloudflare.com/page-shield/how-it-works/	https://pedro-pcx-17419-new-nav-q2-page-shield-update.preview.developers.cloudflare.com/page-shield/how-it-works/
https://developers.cloudflare.com/page-shield/detection/review-changed-scripts/	https://pedro-pcx-17419-new-nav-q2-page-shield-update.preview.developers.cloudflare.com/page-shield/detection/review-changed-scripts/
https://developers.cloudflare.com/page-shield/	https://pedro-pcx-17419-new-nav-q2-page-shield-update.preview.developers.cloudflare.com/page-shield/