Updated Screenshots for Draft: Software Engineer Use Case.

[AbubakrChan]

Updated Screenshots :)

[AbubakrChan]

I've made a commit to upload the screenshots to the appflowy's assets file. Also, I have updated the links to reflect the new image directory. These screenshots will become visible once the PR is merged.

Thank you!

[AbubakrChan]

@Xazin Please continue to merging this PR so that updated images could be reflected. Thanks

[Xazin]

CC @annieappflowy