Change date filter format.

lib/date.js

@@ -30,24 +30,20 @@ export function getDateRange(value) {
   const hour = endOfHour(now);
   const day = endOfDay(now);
 
-  switch (value) {
-    case '7d':
+  const { num, unit } = value.match(/^(?<num>[0-9]+)(?<unit>hour|day)$/).groups;
+
+  switch (unit) {
+    case 'day':
       return {
-        startDate: subDays(day, 7),
+        startDate: subDays(day, num),
         endDate: day,
-        unit: 'day',
+        unit,
       };
-    case '30d':
+    case 'hour':
       return {
-        startDate: subDays(day, 30),
-        endDate: day,
-        unit: 'day',
-      };
-    default:
-      return {
-        startDate: subHours(hour, 24),
+        startDate: subHours(hour, num),
         endDate: hour,
-        unit: 'hour',
+        unit,
       };
   }
 }