Update link pointing to Cost Explorer with pre-filled filters

[mendaomn]

Description

This PR updates the link pointing to Cost Explorer, so that it opens up with the following pre-filled filters:

• granularity: monthly
• time range: last 12 months
• cluster-name: selected cluster
• no groupby

How Has This Been Tested?

• manually, by clicking the link and verifying the chart is the last 12 months, for the selected cluster

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 made sure that any GitHub issue solved by this PR is correctly linked
• [ ] 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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