Add Slides and Videos to pages/speakers/[pageName].tsx route

[nvh95]

I see that all slides have been updated on the homepage and https://2022.jsconf.kr/en/speakers. Is there any chance we can also add them to the speaker detail page (pages/speakers/[pageName].tsx)?

I look at the code but I think speaker details page are managed by a protected Notion page. I am not sure how to add them to the detailed page.

cc: @mojosoeun @ysm-dev What do you think about this idea? Thanks.