About page, disabled school charts

What's Changed

• About: linked external services privacy & cookie policies by @stefanb in #1087
• Hide school charts by @stefanb in #1089

Chore:

• Bump vue and vue-template-compiler by @dependabot in #1086
• Bump actions/setup-node from 3.2.0 to 3.3.0 by @dependabot in #1078
• Bump node from 17.8.0-buster-slim to 18.4.0-buster-slim by @dependabot in #1080
• Bump @vue/cli-plugin-babel from 4.5.15 to 5.0.6 by @dependabot in #1083
• Bump @vue/test-utils from 1.0.5 to 1.3.0 by @dependabot in #997

Full Changelog: v20220601...v20220604