fix: separate connection indicator script from patchable element

The script was being re-added on every SSE patch, creating multiple
setInterval timers. Split into ConnectionIndicator (for patches) and
ConnectionIndicatorWithScript (for initial page render).

features/c4game/pages/game.templ

@@ -18,7 +18,7 @@ templ GamePage(g *connect4.Game, myColor int, messages []chat.Message, chatCfg c
 			data-signals="{chatMsg: ''}"
 			data-init={ fmt.Sprintf("@get('/games/%s/events',{requestCancellation:'disabled'})", g.ID) }
 		>
-			@sharedcomponents.ConnectionIndicator(0)
+			@sharedcomponents.ConnectionIndicatorWithScript(0)
 			@GameContent(g, myColor, messages, chatCfg)
 		</main>
 	}