Starting to implement permissions into frontend

backend/utils/merge_arrays.go

@@ -0,0 +1,11 @@
+package utils
+
+func MergeArrays[K comparable](arrays ...[]K) []K {
+	merged := make([]K, 0)
+
+	for _, v := range arrays {
+		merged = append(merged, v...)
+	}
+
+	return merged
+}