Add add_arrow function (#991)

* Add add_arrow function

* Fix docs build error

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Improve edit_gps_trace

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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

docs/maplibre/add_icon.ipynb

@@ -62,7 +62,7 @@
     "m.add_layer_control()\n",
     "image = \"https://i.imgur.com/ZMMvXuT.png\"\n",
     "m.add_symbol(\n",
-    "    image, source=\"Streams\", icon_size=0.1, symbol_placement=\"line\", minzoom=10\n",
+    "    source=\"Streams\", image=image, icon_size=0.1, symbol_placement=\"line\", minzoom=10\n",
     ")\n",
     "m"
    ]
@@ -79,7 +79,11 @@
     "m.add_layer_control()\n",
     "image = \"https://i.imgur.com/ZMMvXuT.png\"\n",
     "m.add_symbol(\n",
-    "    image, source=\"Hiking Trail\", icon_size=0.1, symbol_placement=\"line\", minzoom=10\n",
+    "    source=\"Hiking Trail\",\n",
+    "    image=image,\n",
+    "    icon_size=0.1,\n",
+    "    symbol_placement=\"line\",\n",
+    "    minzoom=10,\n",
     ")\n",
     "m"
    ]