fix scroll method to Infinite module

[daybrush]

Description

• exist

declare class Infinite {
	constructor(items : ItemManager, options?: {
		isEqualSize?: boolean,
		isConstantSize?: boolean,
		append?: (event?: {cache?: object}) => any,
		append?: (event?: {cache?: object, fit: bool}) => any,
		recycle?: (event?: any) => any,
	});
	scroll(scrollPos: number, isAppend: boolean): void;
}

• new

declare class Infinite {
	constructor(items : ItemManager, options?: {
		isEqualSize?: boolean,
		isConstantSize?: boolean,
		append?: (event?: {cache: object[]}) => any,
		append?: (event?: {cache: object[], fit: bool}) => any,
		recycle?: (event?: any) => any,
	});
	scroll(scrollPos: number): void;
}

Steps to check or reproduce

[jongmoon]

@Younkue is change the second parameter from being removed scroll? Why it is removed?

[daybrush]

@jongmoon isAppend is now a useless parameter.

The scroll now checks all directions.