Selection calculation summary, Hyperlink modal position fixes and Copy Fixes

[sanchit3008]

Closes #507

Closes #510

Closes #513

[sanchit3008]

@zyc9012 @ZhengIce is Ruilisi still actively maintaining FS? I see plenty of open issues and PRs. I think a lot of load will be cut for you if you expand some moderation rights to the community.

[sanchit3008]

@zyc9012

[zyc9012]

Thank you @sanchit3008 for all the work! I've added you as a collaborator. You should be able to merge PRs now.

[sanchit3008]

Thanks a lot @zyc9012