move template_category to own fixture

TemplateCategory are not essential for running a base instance.

apps/note/fixtures/button.json

+[
+      {
+    "model": "note.templatecategory",
+    "pk": 1,
+    "fields": {
+      "name": "Soft"
+    }
+  },
+  {
+    "model": "note.templatecategory",
+    "pk": 2,
+    "fields": {
+      "name": "Pulls"
+    }
+  },
+  {
+    "model": "note.templatecategory",
+    "pk": 3,
+    "fields": {
+      "name": "Gala"
+    }
+  },
+  {
+    "model": "note.templatecategory",
+    "pk": 4,
+    "fields": {
+      "name": "Clubs"
+    }
+  },
+  {
+    "model": "note.templatecategory",
+    "pk": 5,
+    "fields": {
+      "name": "Bouffe"
+    }
+  },
+  {
+    "model": "note.templatecategory",
+    "pk": 6,
+    "fields": {
+      "name": "BDA"
+    }
+  },
+  {
+    "model": "note.templatecategory",
+    "pk": 7,
+    "fields": {
+      "name": "Autre"
+    }
+  },
+  {
+    "model": "note.templatecategory",
+    "pk": 8,
+    "fields": {
+      "name": "Alcool"
+    }
+  }
+]

apps/note/fixtures/initial.json

@@ -199,61 +199,5 @@
       "normalized_name": "kfet",
       "note": 6
     }
-  },
-  {
-    "model": "note.templatecategory",
-    "pk": 1,
-    "fields": {
-      "name": "Soft"
-    }
-  },
-  {
-    "model": "note.templatecategory",
-    "pk": 2,
-    "fields": {
-      "name": "Pulls"
-    }
-  },
-  {
-    "model": "note.templatecategory",
-    "pk": 3,
-    "fields": {
-      "name": "Gala"
-    }
-  },
-  {
-    "model": "note.templatecategory",
-    "pk": 4,
-    "fields": {
-      "name": "Clubs"
-    }
-  },
-  {
-    "model": "note.templatecategory",
-    "pk": 5,
-    "fields": {
-      "name": "Bouffe"
-    }
-  },
-  {
-    "model": "note.templatecategory",
-    "pk": 6,
-    "fields": {
-      "name": "BDA"
-    }
-  },
-  {
-    "model": "note.templatecategory",
-    "pk": 7,
-    "fields": {
-      "name": "Autre"
-    }
-  },
-  {
-    "model": "note.templatecategory",
-    "pk": 8,
-    "fields": {
-      "name": "Alcool"
-    }
   }
 ]