Revert "#16 - removing activeEnv references"

This reverts commit 667a795b51f4a5ca67085a4cef59ab1dabc11eb5.
Revert "#16 - first load is now grouping only by endpoint, no more env grouping on the left sidebar"

This reverts commit 8ce75f845763bd9daebbafd8dc985b8ddcca35db.