[Model] Add gemm-2-2b-jpn-it (#594)

Add the following model to prebuilt model ID:
- `gemma-2-2b-jpn-it-q4f16_1-MLC`
- `gemma-2-2b-jpn-it-q4f32_1-MLC`

See mlc-ai/binary-mlc-llm-libs#143.

Author: CharlieFRuan

src/config.ts

@@ -963,6 +963,34 @@ export const prebuiltAppConfig: AppConfig = {
         context_window_size: 4096,
       },
     },
+    // Gemma2-2b-jpn
+    {
+      model: "https://huggingface.co/mlc-ai/gemma-2-2b-jpn-it-q4f16_1-MLC",
+      model_id: "gemma-2-2b-jpn-it-q4f16_1-MLC",
+      model_lib:
+        modelLibURLPrefix +
+        modelVersion +
+        "/gemma-2-2b-jpn-it-q4f16_1-ctx4k_cs1k-webgpu.wasm",
+      vram_required_MB: 1895.3,
+      low_resource_required: true,
+      required_features: ["shader-f16"],
+      overrides: {
+        context_window_size: 4096,
+      },
+    },
+    {
+      model: "https://huggingface.co/mlc-ai/gemma-2-2b-jpn-it-q4f32_1-MLC",
+      model_id: "gemma-2-2b-jpn-it-q4f32_1-MLC",
+      model_lib:
+        modelLibURLPrefix +
+        modelVersion +
+        "/gemma-2-2b-jpn-it-q4f32_1-ctx4k_cs1k-webgpu.wasm",
+      vram_required_MB: 2508.75,
+      low_resource_required: true,
+      overrides: {
+        context_window_size: 4096,
+      },
+    },
     // Qwen-2
     {
       model: "https://huggingface.co/mlc-ai/Qwen2.5-0.5B-Instruct-q4f16_1-MLC",