Add notebook from Stella

src/user_templates_api/templates/jupyter_lab/templates/spatial_query/metadata.json

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+{
+  "title": "Analyze spatial single cell data with SpatialQuery",
+  "description": "This notebook shows how to quickly identify spatially co-occurring cell types within one or more fields of view using SpatialQuery.",
+  "tags": [
+    "anndata",
+    "visualization"
+  ], 
+  "is_multi_dataset_template": true,
+  "template_format": "jinja",
+  "examples": [
+    {
+      "title": "Analyze Slide-seq datasets with SpatialQuery.",
+      "description": "Use SpatialQuery to identify frequent spatial patterns.",
+      "datasets": ["a1d17fdd270a69c813b872a927dfa5f3"],
+      "resource_options": { "memory_mb" : 32768 }
+    }
+  ],
+  "is_hidden": false,
+  "last_modified_unix_timestamp": 1726668082
+}

src/user_templates_api/templates/jupyter_lab/templates/spatial_query/render.py

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+from user_templates_api.templates.jupyter_lab.render import JupyterLabRender
+
+
+class JupyterLabExampleJinjaRender(JupyterLabRender):
+    def __init__(self):
+        pass