Add Jinja playground

src/lib/Playground/PlaygroundJinja.svelte

@@ -0,0 +1,39 @@
+<script lang="ts">
+    import { language } from "src/lang";
+    import { Template } from '@huggingface/jinja';
+    import TextAreaInput from "../UI/GUI/TextAreaInput.svelte";
+    let input = "";
+    let json = JSON.stringify({
+        "messages": [{
+            "role": "user",
+            "content": "Hello, I'm a user!"
+        }, {
+            "role": "assistant",
+            "content": "Hello, I'm a bot!"
+        }]
+    }, null, 4)
+    let output = "";
+    const onInput = () => {
+        try {
+            const template = new Template(input);
+            const values = JSON.parse(json);
+            output = template.render(values);
+        } catch (e) {
+            output = `Error: ${e}`
+        }
+    }
+</script>
+
+<h2 class="text-4xl text-textcolor my-6 font-black relative">Jinja</h2>
+
+<span class="text-textcolor text-lg">Jinja</span>
+
+<TextAreaInput onInput={onInput} bind:value={input} height="32" />
+
+<span class="text-textcolor text-lg">Data (JSON)</span>
+
+<TextAreaInput bind:value={json} height="32" />
+
+<span class="text-textcolor text-lg">Result</span>
+
+<TextAreaInput value={output} height="32" />