feat: add missing storybook files and type template arguments properly

src/features/DisplayFont/ui/FontSampler/FontSampler.stories.svelte

@@ -35,6 +35,7 @@ const { Story } = defineMeta({
 
 <script lang="ts">
 import type { UnifiedFont } from '$entities/Font';
+import type { ComponentProps } from 'svelte';
 
 // Mock fonts for testing
 const mockArial: UnifiedFont = {
@@ -88,7 +89,7 @@ const mockGeorgia: UnifiedFont = {
         index: 0,
     }}
 >
-    {#snippet template(args)}
+    {#snippet template(args: ComponentProps<typeof FontSampler>)}
         <Providers>
             <div class="max-w-2xl mx-auto">
                 <FontSampler {...args} />
@@ -105,7 +106,7 @@ const mockGeorgia: UnifiedFont = {
         index: 1,
     }}
 >
-    {#snippet template(args)}
+    {#snippet template(args: ComponentProps<typeof FontSampler>)}
         <Providers>
             <div class="max-w-2xl mx-auto">
                 <FontSampler {...args} />