feat(types): simplify ExtractPropTypes to avoid props JSDocs being removed

[johnsoncodehk]

Relate issues: vuejs/language-tools#799, microsoft/TypeScript#31992

Remove O extends object from ExtractPropTypes to avoid tsc remove props JSDoc comments.
And it can also help for improve component props hover info in IDE.

In addition, changed { [K in KeysType]: T[K] } to { [K in keyof Pick<K, KeysType>]: T[K] } to fixed find references, renaming not working for props again. (#3656)
Revert this change from LooseRequired because it cause tests failed.

Before simplify ExtractPropTypes:

import { PropType } from 'vue';
declare const _default: import("vue").DefineComponent<{
    /**
     * The icon name as per the reference at https://pepicons.com
     * @type {'airplane' | 'angle-down'}
     * @example 'airplane'
     */
    name: {
        type: PropType<Pepicon>;
        required: true;
    };
}, () => void, unknown, {}, {}, import("vue").ComponentOptionsMixin, import("vue").ComponentOptionsMixin, Record<string, any>, string, import("vue").VNodeProps & import("vue").AllowedComponentProps & import("vue").ComponentCustomProps, Readonly<{
    name?: unknown;
} & {
    name: Pepicon;
} & {}>, {}>;
export default _default;

After simplify ExtractPropTypes:

import { PropType } from 'vue';
declare const _default: import("vue").DefineComponent<{
    /**
     * The icon name as per the reference at https://pepicons.com
     * @type {'airplane' | 'angle-down'}
     * @example 'airplane'
     */
    name: {
        type: PropType<Pepicon>;
        required: true;
    };
}, () => void, unknown, {}, {}, import("vue").ComponentOptionsMixin, import("vue").ComponentOptionsMixin, Record<string, any>, string, import("vue").VNodeProps & import("vue").AllowedComponentProps & import("vue").ComponentCustomProps, Readonly<import("vue").ExtractPropTypes<{
    /**
     * The icon name as per the reference at https://pepicons.com
     * @type {'airplane' | 'angle-down'}
     * @example 'airplane'
     */
    name: {
        type: PropType<Pepicon>;
        required: true;
    };
}>>, {}>;
export default _default;

[mesqueeb]

@knightly-bot build this