完善各模块的视频上传功能，显示正在上传和上传完成提示

Tcsm

2023-08-09 1a55d5008d2484e4730a5e8919cdb95e14da98d5

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export function isPromise(maybePromise) {
    return (!!maybePromise &&
        !!maybePromise.then &&
        typeof maybePromise.then === 'function');
}