[GeoPoint] Add doc page

Author: techniq

packages/layerchart/src/routes/_NavMenu.svelte

@@ -59,7 +59,7 @@
       'Threshold',
     ],
     Interactions: ['Tooltip', 'TooltipContext', 'Highlight', 'Zoom'],
-    Geo: ['GeoContext', 'GeoPath', 'GeoPoint', 'GeoTile', 'Graticule', 'TileImage'],
+    Geo: ['GeoContext', 'GeoCircle', 'GeoPath', 'GeoPoint', 'GeoTile', 'Graticule', 'TileImage'],
     Hierarchy: ['Pack', 'Partition', 'Sankey'],
     Clipping: ['ClipPath', 'ChartClipPath', 'CircleClipPath', 'RectClipPath'],
     Other: ['Blur', 'Bounds', 'ColorRamp', 'LinearGradient', 'MotionPath', 'Pattern'],

packages/layerchart/src/routes/docs/components/GeoCircle/+page.svelte

@@ -0,0 +1,4 @@
+<script lang="ts">
+  import Chart, { Svg } from '$lib/components/Chart.svelte';
+  import Preview from '$lib/docs/Preview.svelte';
+</script>

packages/layerchart/src/routes/docs/components/GeoCircle/+page.ts

@@ -0,0 +1,14 @@
+import api from '$lib/components/GeoCircle.svelte?raw&sveld';
+import source from '$lib/components/GeoCircle.svelte?raw';
+import pageSource from './+page.svelte?raw';
+
+export async function load() {
+  return {
+    meta: {
+      api,
+      source,
+      pageSource,
+      related: ['examples/Timezones'],
+    },
+  };
+}