fix: error parsing invalid logical where arrays (#22)

When extracting nested actions in logical where arrays we can encounter
an error if the array contains null or undefined. This is because we try
to access a property on those values.

Use optional chaining to ensure that the value is defined before trying
to access a property in logical where arrays.

src/lib/utils/extractNestedActions.ts

@@ -86,7 +86,7 @@ export function extractRelationLogicalWhereActions(
 
       if (Array.isArray(logicalArg)) {
         logicalArg.forEach((where, index) => {
-          const arg = where[relation.name];
+          const arg = where?.[relation.name];
           if (!arg) return;
 
           const operations = [...parentOperations, { logicalOperator, index }];