Fix nullability in javascript proxy types in abp built-in modules

[hillin]

Is there an existing issue for this?

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Is your feature request related to a problem? Please describe the problem.

Since we have rolled out #22120, all (well, most) user-generated proxies now have nullabilities correctly reflect their backend counterparts. However in abp's built-in modules, some types still have incorrect nullability. E.g. EntityDto<TKey> in the @abp/ng.core package:

export declare class EntityDto<TKey = string> {
    id?: TKey;   // should not be nullable
    constructor(initialValues?: Partial<EntityDto<TKey>>);
}

Describe the solution you'd like

Update these types with correct nullability.

Additional context

No response