[feat] added background embedding

src/lib/ChatScreens/BackgroundDom.svelte

@@ -0,0 +1,14 @@
+<script lang="ts">
+  import { ParseMarkdown } from "src/ts/parser";
+  import { DataBase } from "src/ts/storage/database";
+  import { selectedCharID } from "src/ts/stores";
+</script>
+
+
+{#if $selectedCharID > 0 && $DataBase.characters[$selectedCharID].backgroundHTML}
+    <div class="absolute top-0 left-0 w-full h-full">
+        {#await ParseMarkdown($DataBase.characters[$selectedCharID].backgroundHTML, $DataBase.characters[$selectedCharID], 'back') then md} 
+            {@html md}
+        {/await}
+    </div>
+{/if}