* fix: added feature flag gating to releases fetch requests
* fix: centralize release availability gating
* chore: updated releases feature check at sidebar sections
* feat: implement feature flag validation for releases in work item filters
* * chore: updated all fetch calls to use store.
* chore: updated rich filters config to get rid of feature flag check.
---------
Co-authored-by: b-saikrishnakanth <[email protected]>