Fetch PC version during initial load

[mendaomn]

Description

This PR moves the request for the PC version into the initial load happening before booting the app. This is due to the fact that the rest of the app behaves as if the version is always present, and could crash if the version is not there for some reason.

This also fixes a crash happening whenever the get_version call takes too much time to respond, causing the code accessing the version to crash unexpectedly. In order to reproduce, simply add a timeout in the GetVersion command

Changes

• refactor GetVersion to an async function
• remove major, minor and patch values from the store, since they are never accessed
• call GetVersion in useLoadingState
• remove GetVersion call from the LoadInitialState

How Has This Been Tested?

• manually, by verifying the crash does not happen anymore
• unit tests
• e2e tests locally

PR Quality Checklist

• [x] 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
• [x] I checked that npm run build builds without any error
• [x] 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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