Add a player-facing combat tracker with condition status

[erichs]

Adds a new page, player-facing.html, intended for sharing with players via screenshare or external monitor during actual play--it follows changes to the local storage and presents a clean display of:

• round number,
• initiative order,
• current and next turns,
• HP status (none, hit, bloodied, death's door, dead)
• condition status with emoji

The DM-facing index.html has been modified to support the left-most conditions dropdown select, as well as instrument syncing via localstorage where appropriate.

I've been running with this for a few sessions, leaning into using the artisanal database more at the table (thanks so much for this!).

Here's a video demo of the features in action:

player-facing-combat-tracker-demo.mp4

[erichs]

For completeness' sake, I'll mention that I just discovered this repo today, so I had avoided making any changes to the source zip contents of the database, and was using a javascript bookmarklet to dynamically edit the normal combat tracker index.html tool.