fix: incomplete CSP headers for kapa

[raymondk]

This should address the following errors showing up in the console:

kapa-widget.bundle.js:2 Refused to load the script 'https://metrics.kapa.ai/web/v3/MHIUVE6Y4VV6H5lpgMyI/loader_v3.11.2.js' because it violates the following Content Security Policy directive: "script-src 'self' 'unsafe-eval' 'unsafe-inline' https://internetcomputer.matomo.cloud https://cdn.matomo.cloud https://widget.kapa.ai https://www.google.com https://www.gstatic.com". Note that 'script-src-elem' was not explicitly set, so 'script-src' is used as a fallback.

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[github-actions[bot]]

🤖 Here's your preview: https://fkpod-biaaa-aaaam-abtcq-cai.icp0.io

[raymondk]

Doesn't look like it's working on the preview...

[marc0olo]

note:

• due to some issues with reCaptcha we switched recently to hCaptcha and I did some other adjustments for this
  • see https://github.com/dfinity/portal/pull/5982, https://github.com/dfinity/portal/pull/5983 and https://github.com/dfinity/portal/pull/5984

regarding the issue in the console I hope the new PR will finally fix this: https://github.com/dfinity/portal/pull/6007