fix: fetch all groups via -AllPages for large tenants

Replaces default 100-item page limits and =999 workarounds
with -AllPages on group queries across assignment and baseline scripts.
Enables full fzf inline search/filter for group selection.

Scripts/Export-AssignmentsToCsv.ps1

@@ -242,8 +242,8 @@ if(-not $selectedTypeTitles)
 }
 
 Write-Host "`nLoading groups for name resolution..." -ForegroundColor Cyan
-$groupsResponse = Invoke-GraphRequest "/groups?`$select=id,displayName&`$top=999"
-$groups = $groupsResponse.value
+$groupsResponse = Invoke-GraphRequest "/groups?`$select=id,displayName&`$orderby=displayName" -AllPages
+$groups = $groupsResponse
 
 $reportRows = @()