style: change style of if statement

Co-authored-by: Simon Vallières <[email protected]>

Author: mok-liee

src/comparators.ts

@@ -7,7 +7,9 @@ export abstract class Comparator implements Item {
   constructor(protected selector: Function | string, protected comparatorKeyWord: string, protected value?: string | number) {}
 
   toString(): string {
-    if (typeof this.value === 'undefined' || this.value === null) return `${this.selector} ${this.comparatorKeyWord}`;
+    if (typeof this.value === 'undefined' || this.value === null) {
+      return `${this.selector} ${this.comparatorKeyWord}`;
+    }
     if (typeof this.value === 'number') {
       return `${this.selector} ${this.comparatorKeyWord} ${this.value}`;
     } else {