Added support for single user column type in automation block

packages/builder/src/components/automation/SetupPanel/RowSelectorTypes.svelte

@@ -99,7 +99,7 @@
     on:change={e => onChange(e, field)}
     useLabel={false}
   />
-{:else if schema.type === "bb_reference"}
+{:else if schema.type === "bb_reference" || schema.type === "bb_reference_single"}
   <LinkedRowSelector
     linkedRows={value[field]}
     {schema}

packages/builder/src/components/common/LinkedRowSelector.svelte

@@ -43,7 +43,7 @@
     <b>{linkedTable.name}</b>
     table.
   </Label>
-{:else if schema.relationshipType === "one-to-many"}
+{:else if schema.relationshipType === "one-to-many" || schema.type === "bb_reference_single"}
   <Select
     value={linkedIds?.[0]}
     options={rows}