cleaned up some components conditional css class assignment

src/lib/components/outlined-button.svelte

@@ -10,11 +10,7 @@
     } = $props();
 </script>
 
-{#if fullWidth}
-    <button class="outlined-button outlined-button-fullwidth" onclick={onClick}>{text}</button>   
-{:else}
-    <button class="outlined-button" onclick={onClick}>{text}</button>
-{/if}
+<button class="outlined-button {fullWidth ? "outlined-button-fullwidth" : ""}" onclick={onClick}>{text}</button>   
 
 <style>
     .outlined-button {