update: generalize button components

src/lib/components/ui/IconButton.svelte

@@ -0,0 +1,52 @@
+<script lang="ts">
+	import type { Snippet } from 'svelte';
+	import type { HTMLButtonAttributes } from 'svelte/elements';
+
+	interface Props extends HTMLButtonAttributes {
+		color?: string | null;
+		rounded?: 'full' | 'md' | 'lg';
+		size?: 'sm' | 'md' | 'lg';
+		children: Snippet;
+	}
+
+	let {
+		color = null,
+		rounded = 'full',
+		size = 'md',
+		class: className = '',
+		children,
+		...restProps
+	}: Props = $props();
+
+	const sizeClasses = {
+		sm: 'w-8 h-8',
+		md: 'w-10 h-10',
+		lg: 'w-12 h-12'
+	};
+
+	const roundedClasses = {
+		full: 'rounded-full',
+		md: 'rounded-md',
+		lg: 'rounded-lg'
+	};
+
+	const baseClasses = 'flex items-center justify-center border border-input transition-colors';
+	const sizeClass = sizeClasses[size];
+	const roundedClass = roundedClasses[rounded];
+</script>
+
+<button
+	type="button"
+	class="{baseClasses} {sizeClass} {roundedClass} {className}"
+	class:hover:bg-accent={!color}
+	style={color ? `--hover-bg: ${color}20;` : ''}
+	{...restProps}
+>
+	{@render children()}
+</button>
+
+<style>
+	button[style*='--hover-bg']:hover {
+		background-color: var(--hover-bg);
+	}
+</style>