Server patches the ConnectionIndicator element with a timestamp on
each heartbeat. Client-side JS checks every second if the timestamp
is stale (>20s) and toggles red/green accordingly.
This properly detects connection loss since the indicator will turn
red if no patches are received.
- Add ConnectionIndicator component showing green/red dot
- Send lastPing signal every 15 seconds via SSE
- Indicator turns red if no ping received in 20 seconds
- Gives users confidence the live connection is active
Replace invalid .key_enter and .enter modifiers with evt.key === 'Enter'
guard in the expression, per Datastar docs. Also fix __stop and __throttle
modifier syntax to use double underscores.
Pressing Enter on the username field in login/register or the nickname
field in the join-game prompt now submits the form, matching user
expectations. Also add *.templ to the gitignore allowlist.
