Added generators for card layouts. (#182)

* Added generators for card layouts. These are optionally defined in the timemap config

* Removed US2020-specific layout generation - now it's being specified in the config

src/common/card.js

@@ -0,0 +1,31 @@
+// Sensible defaults for generating a basic card layout
+// based on the example Timemap datasheet.
+const basic = ({ event }) => {
+  return [
+    [
+      {
+        kind: 'date',
+        title: 'Incident Date',
+        value: event.datetime || event.date || ``
+      },
+      {
+        kind: 'text',
+        title: 'Location',
+        value: event.location || `—`
+      }
+    ],
+    [{ kind: 'line-break', times: 0.4 }],
+    [
+      {
+        kind: 'text',
+        title: 'Summary',
+        value: event.description || ``,
+        scaleFont: 1.1
+      }
+    ]
+  ]
+}
+
+export default {
+  basic
+}