Fix initiative input clipping inside container

Widen initiative grid column from 3rem to 3.5rem and use w-full
on the editing input so it fits within the rounded background
container without overflowing.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

apps/web/src/components/combatant-row.tsx

@@ -348,7 +348,7 @@ function InitiativeDisplay({
 				value={draft}
 				placeholder="--"
 				className={cn(
-					"h-7 w-[6ch] text-center text-sm tabular-nums",
+					"h-7 w-full text-center text-sm tabular-nums",
 					dimmed && "opacity-50",
 				)}
 				onChange={(e) => setDraft(e.target.value)}
@@ -520,7 +520,7 @@ export function CombatantRow({
 				isPulsing && "animate-concentration-pulse",
 			)}
 		>
-			<div className="grid grid-cols-[2rem_3rem_auto_1fr_auto_2rem] items-center gap-3 py-2">
+			<div className="grid grid-cols-[2rem_3.5rem_auto_1fr_auto_2rem] items-center gap-3 py-2">
 				{/* Concentration */}
 				<button
 					type="button"