Refacotr/pi countt and faster application loading

[dweinholz]

@vktrrdk @qqmok

Everything needs to be testet (VO and FM Applications) -- there were many changes please test it carefully

Performance should be better (Perun information is loaded later) -- merged modification and resources tab and show pi projects counter

needs: https://github.com/deNBI/cloud-api/compare/dev...feat/pi_project_count?expand=1

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