Add a "Confined" achievement

We already have “Habitual” (3 days), “Addicted” (7 days) and “Unemployed” (14 days) achievements for riding consistently for the given days. But with those hard times we’re in, I guess we will be a lot riding more than 14 days in a row, just to keep our sanity since we can’t go ride outside.

In a lot of countries the lockdown is supposed to be at least a month long so, the new “Confined” achievement may be unlocked for having riden 30 days in a row ?