one of two users selecting impact choice now delivers non-impact end-lev...


#### What's this PR do?
Squashes two bugs: one of two users selecting the impact choice now delivers the non-impact end-level condition, each users choice set now only counted once when determining winning level choice-set. 

(Two out of four users selecting the impact choice still delivers the impact end-level condition, however.) 

#### How should this be manually tested?
Postman! Create a game, have two users join, have one select the impact choice-set, one select a non-impact choice-set. 

(Was also tested with four players.) 

#### What are the relevant tickets?
Jira SMS-60
You could combine the logic here with that on line 1019.

```
var isTwoPlayerGame = gameDoc.players_current_status.length;
var countEqualsMax = choiceCounter[i] === maxCount;
var isNewMax = choiceCounter[i] > maxCount;
if ((isTwoPlayerGame && countEqualsMax) || isNewMax) {
  selectChoice = i;
  maxCount = choiceCounter[i];
}
```

It'll save you from having duplicate code in both `if` blocks and could be an easier read as somewhat self-documenting code.