Fix DateView test failing according to Node version

[mendaomn]

Description

This PR fixes a failure of the DateView test caused by different implementations of toLocaleString rendering different strings (e.g. connectors between year and hour)

Changes

• instead of full string equality, just check the presence of localized date, hour and timezone components

How Has This Been Tested?

• successful tests with Node 14, 16 and 19

PR Quality Checklist

• [ ] I added tests to new or existing code
• [ ] I removed hardcoded strings and used react-i18next library (useTranslation hook and/or Trans component), see an example here
• [ ] I made sure no sensitive info gets logged at any time in the codebase (see here) (e.g. no user info or details, no stacktraces, etc.)
• [ ] I checked that infrastructure/update_infrastructure.sh runs without any error
• [ ] I checked that npm run build builds without any error
• [ ] I checked that clusters are listed correctly
• [ ] I checked that a new cluster can be created (config is produced and dry run passes)
• [ ] I checked that login and logout work as expected

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