refactor(app/error/builder): add docs on builder

src/App/Error/ErrorBuilder.ts

@@ -25,31 +25,52 @@ export default class ErrorBuilder<T extends {}> implements IErrorBuilder<T> {
         return this;
     }
 
+    /**
+     * Set additional fields on error query
+     */
     public setKind<D extends T>(data: D): ErrorBuilder<D> {
         return this.setProps("kind", data) as unknown as ErrorBuilder<D>;
     }
 
+    /**
+     * Set instance or path where error raised on error query
+     */
     public setInstance(instance: string): this {
         return this.setProps("instance", instance);
     }
 
+    /**
+     * Set code error type on error query
+     */
     public setMDNCodeType(code: StatusCode): this {
         return this.setProps("type", `https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/${code}`);
     }
 
+    /**
+     * Set type of error URI on error query
+     */
     public setType(type: string): this {
         return this.setProps("type", type);
     }
 
+    /**
+     * Set the title on error query
+     */
     public setTitle(title: string): this {
         return this.setProps("title", title);
     }
 
+    /**
+     * Set the detail on error query
+     */
     public setDetail(detail: string): this {
         return this.setProps("detail", detail);
     }
 
-    public build(): any {
+    /**
+     * Generate the error query
+     */
+    public build(): IErrorBuilder<T> {
         const data: IErrorBuilder<T> = {
             type: this.type,
             title: this.title,