sandra event past; hyosub date TBD

[reshamas]

• reorder past events so they are chronologically decreasing
• make Sandra's event PAST
• make Hyosub's event date TBD
• update Sandra's event description

Closes #106 Closes #107

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[reshamas]

Please don't merge yet. It's not ready.

[reshamas]

@canyon289 This PR is now ready for review and merge.