Add filter nav for games.

- Add styling via css.
- Set structure using nav element.
Add banner with image slider.

- Add script for jQuery from CDN.
- Add Basic jQuery Slider component to handle showing images.
- Include custom images of seat location (placeholders for now).
Style the next/prev buttons on Simple jQuery Slider.

- Add Simple jQuery Slider CSS before site's CSS.
- Add styling for next and previous buttons.
Set game details element height/width to be constant.

- This will ensure during responsive resizing that everything matches correctly as text per game could be different.
- ISSUE: the game details are not vertically centered with the height set.
Fix game element styling with padding.

- Gridism auto adds padding-left to first child element of unit; no-gutters is added to stop this.
- Add margin of 10px to offset the gutters being removed.