Use uuid.UUID everywhere and have postgres generate ids

http/http.go

@@ -14,6 +14,7 @@ import (
 	"git.javil.eu/jacob1123/budgeteer/web"
 
 	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
 )
 
 // Handler handles incoming requests
@@ -72,7 +73,13 @@ func (h *Handler) budget(c *gin.Context) {
 	}
 
 	budgetID := c.Param("budgetid")
-	budget, err := h.Service.DB.GetBudget(context.Background(), budgetID)
+	budgetUUID, err := uuid.Parse(budgetID)
+	if err != nil {
+		c.Redirect(http.StatusTemporaryRedirect, "/login")
+		return
+	}
+
+	budget, err := h.Service.DB.GetBudget(context.Background(), budgetUUID)
 	if err != nil {
 		c.AbortWithError(http.StatusUnauthorized, err)
 		return