Add timezone support to /forecast/hourly endpoint

internal/adapters/inbound/httpapi/presenter/helpers.go

@@ -47,6 +47,21 @@ func copyTimePtr(v *time.Time) *time.Time {
 	return &out
 }
 
+func inLocationTime(v time.Time, loc *time.Location) time.Time {
+	if loc == nil {
+		return v
+	}
+	return v.In(loc)
+}
+
+func inLocationTimePtr(v *time.Time, loc *time.Location) *time.Time {
+	if v == nil {
+		return nil
+	}
+	out := inLocationTime(*v, loc)
+	return &out
+}
+
 func boolText(v *bool) string {
 	if v == nil {
 		return ""