Add Gemma 4 instruct, context, and reasoning presets (#5403)

* Add Gemma 4 context preset

* Add new instruction preset for Gemma 4

* Add Gemma 4 reasoning preset

* Add to index.json

* Disable wrapping, fix story string

---------

Co-authored-by: Cohee <18619528+Cohee1207@users.noreply.github.com>

default/content/index.json

@@ -642,5 +642,17 @@
     {
         "filename": "presets/reasoning/Think XML.json",
         "type": "reasoning"
+    },
+    {
+        "filename": "presets/reasoning/Gemma 4.json",
+        "type": "reasoning"
+    },
+    {
+        "filename": "presets/instruct/Gemma 4.json",
+        "type": "instruct"
+    },
+    {
+        "filename": "presets/context/Gemma 4.json",
+        "type": "context"
     }
 ]

default/content/presets/context/Gemma 4.json

@@ -0,0 +1,14 @@
+{
+    "story_string": "{{#if anchorBefore}}{{anchorBefore}}\n{{/if}}{{#if system}}{{system}}\n{{/if}}{{#if wiBefore}}{{wiBefore}}\n{{/if}}{{#if description}}{{description}}\n{{/if}}{{#if personality}}{{personality}}\n{{/if}}{{#if scenario}}{{scenario}}\n{{/if}}{{#if wiAfter}}{{wiAfter}}\n{{/if}}{{#if persona}}{{persona}}\n{{/if}}{{#if anchorAfter}}{{anchorAfter}}\n{{/if}}{{trim}}",
+    "example_separator": "",
+    "chat_start": "",
+    "use_stop_strings": false,
+    "names_as_stop_strings": true,
+    "story_string_position": 0,
+    "story_string_depth": 1,
+    "story_string_role": 0,
+    "always_force_name2": true,
+    "trim_sentences": false,
+    "single_line": false,
+    "name": "Gemma 4"
+}

default/content/presets/instruct/Gemma 4.json

@@ -0,0 +1,25 @@
+{
+    "input_sequence": "<|turn>user\n",
+    "output_sequence": "<|turn>model\n",
+    "last_output_sequence": "",
+    "system_sequence": "<|turn>system\n",
+    "stop_sequence": "<turn|>",
+    "wrap": false,
+    "macro": true,
+    "names_behavior": "force",
+    "activation_regex": "",
+    "first_output_sequence": "",
+    "skip_examples": false,
+    "output_suffix": "<turn|>\n",
+    "input_suffix": "<turn|>\n",
+    "system_suffix": "<turn|>\n",
+    "user_alignment_message": "",
+    "system_same_as_user": false,
+    "last_system_sequence": "",
+    "first_input_sequence": "",
+    "last_input_sequence": "",
+    "sequences_as_stop_strings": true,
+    "story_string_prefix": "<|turn>system\n",
+    "story_string_suffix": "<turn|>\n",
+    "name": "Gemma 4"
+}

default/content/presets/reasoning/Gemma 4.json

@@ -0,0 +1,6 @@
+{
+    "name": "Gemma 4",
+    "prefix": "<|channel>thought\n",
+    "suffix": "\n<channel|>",
+    "separator": "\n\n"
+}