feat(layout): impl Display for Position and Size

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 94.2%. Comparing base (d7ed6c8) to head (b1b4b1c).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1162 +/- ## ===================================== Coverage 94.2% 94.2% ===================================== Files 60 60 Lines 14509 14522 +13 ===================================== + Hits 13670 13683 +13 Misses 839 839 ```

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[joshka]

I would use 13x37 for a Position too but its probably not that relevant.

As a downside… changing the Display implementation later on is probably a breaking change.

Bikeshed comment, but hard disagree. (x, y) is pretty standard for things which are coordinates.