[RPG] Can Wild Shape provide Darkvision to a human Druid

You have the Con score of your beast form.

The first benefit of the Durable feat states (PHB, p. 166):

Increase your Constitution score by +1, to a maximum of 20.

This is a one-time benefit you receive when you take the feat. You level up, select Durable, and your Con score goes up by 1.

For contrast, take a look at the other half of Durable:

When you roll a Hit Die to regain hit points, the minimum number of hit points you regain from the roll equals twice your Constitution modifier (minimum of 2).

This is an ongoing benefit that is triggered whenever you roll a hit die to regain hit points.

So Durable increases your Con score by 1, but when you enter Wild Shape:

Your game statistics are replaced by the statistics of the beast.

and your Con score becomes that of the beast form.

This does open the game up to potential shenanigans around leveling up while Wild Shaped, but that issue already existed, and this is one of the least problematic examples.

You keep the Drow race's range on Darkvision. The rules say you retain your racial features, but can't use special senses unless your new form also has them:

You retain the benefit of any features from your class, race, or other source and can use them if the new form is physically capable of doing so. However, you can't use any of your Special senses, such as Darkvision, unless your new form also has that sense.

Emphasis mine.

You retain your race's Darkvision, and so you retain Darkvision 120'. If you wild shape into a beast that does not have Darkvision, you can't use your Special Sense but you have still retained it. If you wild shape into a beast that does have Darkvision, though, then you can use it. And since you retained the feature from your race, you use your race-granted version of it, which has the longer range.