refactor: migrate all callers from unifiedFontStore to fontStore

src/widgets/FontSearch/ui/FontSearch/FontSearch.svelte

@@ -3,7 +3,7 @@
     Provides a search input and filtration for fonts
 -->
 <script lang="ts">
-import { unifiedFontStore } from '$entities/Font';
+import { fontStore } from '$entities/Font';
 import {
     FilterControls,
     Filters,
@@ -36,7 +36,7 @@ let { showFilters = $bindable(true) }: Props = $props();
 
 $effect(() => {
     const params = mapManagerToParams(filterManager);
-    untrack(() => unifiedFontStore.setParams(params));
+    untrack(() => fontStore.setParams(params));
 });
 
 const transform = new Tween(