Move Order struct to data models package

internal/models/data.go

@@ -1,5 +1,7 @@
 package models
 
+import "time"
+
 type Cake struct {
 	Name         string
 	ID           int
@@ -8,3 +10,16 @@ type Cake struct {
 	Category     string
 	Availability string
 }
+
+type Order struct {
+	ID       int
+	Name     string
+	Surname  string
+	Phone    string
+	Location string
+	Date     time.Time
+	Accepted time.Time
+	Status   string
+	Paid     int // increments of 0.01
+	Cakes    []Cake
+}