Add a nominative scoreboard

[damienalexandre]

As we elect Quote of day (:3rd_place_medal:), Quote of the month (:2nd_place_medal:) and Quote of the Year (:1st_place_medal:) we could have a nominative score ladder too.

Something like this:

[lyrixx]

How do the medals are computed?

[damienalexandre]

• User gets a :3rd_place_medal: for each QOTD
• When this QOTD is QOTM, :3rd_place_medal: become :2nd_place_medal: (must be months in the past only)
• When this QOTD is QOTY, :2nd_place_medal: become :1st_place_medal: (must be year in the past only)

[lyrixx]

I like it 👍🏼 Do you want to give it a try?

[lyrixx]

Fixed by https://github.com/jolicode/qotd/pull/67

Was definitively not a "good first issue" 😅