docs: fixing markdown for tips (#18199)

Previous markdown code was not working as intended, new code should add
green box around the tip so it is highlighted

Co-authored-by: Hershenson, Isaac (Extern) <isaac.hershenson.extern@bayer04.de>
Co-authored-by: Bagatur <baskaryan@gmail.com>

docs/docs/expression_language/cookbook/prompt_size.ipynb

@@ -220,7 +220,7 @@
    "id": "637f994a-5134-402a-bcf0-4de3911eaf49",
    "metadata": {},
    "source": [
-    ":::tip\n",
+    ":::{.callout-tip}\n",
     "\n",
     "[LangSmith trace](https://smith.langchain.com/public/60909eae-f4f1-43eb-9f96-354f5176f66f/r)\n",
     "\n",
@@ -388,7 +388,7 @@
    "id": "5a7e498b-dc68-4267-a35c-90ceffa91c46",
    "metadata": {},
    "source": [
-    ":::tip\n",
+    ":::{.callout-tip}\n",
     "\n",
     "[LangSmith trace](https://smith.langchain.com/public/3b27d47f-e4df-4afb-81b1-0f88b80ca97e/r)\n",
     "\n",

docs/docs/expression_language/how_to/message_history.ipynb

@@ -552,7 +552,7 @@
    "id": "da3d1feb-b4bb-4624-961c-7db2e1180df7",
    "metadata": {},
    "source": [
-    ":::tip\n",
+    ":::{.callout-tip}\n",
     "\n",
     "[Langsmith trace](https://smith.langchain.com/public/bd73e122-6ec1-48b2-82df-e6483dc9cb63/r)\n",
     "\n",

docs/docs/expression_language/why.ipynb

@@ -18,7 +18,7 @@
    "id": "919a5ae2-ed21-4923-b98f-723c111bac67",
    "metadata": {},
    "source": [
-    ":::tip \n",
+    ":::{.callout-tip} \n",
     "We recommend reading the LCEL [Get started](/docs/expression_language/get_started) section first.\n",
     ":::"
    ]

docs/docs/modules/agents/agent_types/openai_assistants.ipynb

@@ -163,7 +163,7 @@
    "id": "db6b9cbf-dd54-4346-be6c-842e08756ccc",
    "metadata": {},
    "source": [
-    ":::tip\n",
+    ":::{.callout-tip}\n",
     "\n",
     "[LangSmith trace](https://smith.langchain.com/public/6750972b-0849-4beb-a8bb-353d424ffade/r)\n",
     "\n",

docs/docs/modules/agents/agent_types/openai_tools.ipynb

@@ -21,7 +21,7 @@
     "\n",
     "OpenAI termed the capability to invoke a **single** function as **functions**, and the capability to invoke **one or more** functions as **tools**.\n",
     "\n",
-    ":::tip\n",
+    ":::{.callout-tip}\n",
     "\n",
     "In the OpenAI Chat API, **functions** are now considered a legacy options that is deprecated in favor of **tools**.\n",
     "\n",

docs/docs/modules/agents/agent_types/xml_agent.ipynb

@@ -19,7 +19,7 @@
     "\n",
     "Some language models (like Anthropic's Claude) are particularly good at reasoning/writing XML. This goes over how to use an agent that uses XML when prompting. \n",
     "\n",
-    ":::tip\n",
+    ":::{.callout-tip}\n",
     "\n",
     "* Use with regular LLMs, not with chat models.\n",
     "* Use only with unstructured tools; i.e., tools that accept a single string input.\n",

docs/docs/use_cases/question_answering/chat_history.ipynb

@@ -315,7 +315,7 @@
    "id": "53263a65-4de2-4dd8-9291-6a8169ab6f1d",
    "metadata": {},
    "source": [
-    ":::tip\n",
+    ":::{.callout-tip}\n",
     "\n",
     "Check out the [LangSmith trace](https://smith.langchain.com/public/243301e4-4cc5-4e52-a6e7-8cfe9208398d/r) \n",
     "\n",

docs/docs/use_cases/question_answering/sources.ipynb

@@ -235,7 +235,7 @@
    "id": "b437da5d-ca09-4d15-9be2-c35e5a1ace77",
    "metadata": {},
    "source": [
-    ":::tip\n",
+    ":::{.callout-tip}\n",
     "\n",
     "Check out the [LangSmith trace](https://smith.langchain.com/public/007d7e01-cb62-4a84-8b71-b24767f953ee/r)\n",
     "\n",