add revenue now workd through shell command

internal/shell/revenue.go

@@ -1,6 +1,7 @@
 package shell
 
 import (
+	"Portifolio/internal/database"
 	"Portifolio/internal/model"
 	"Portifolio/internal/service"
 	"bufio"
@@ -67,6 +68,12 @@ func AddRevenue(scanner *bufio.Scanner, db *sql.DB) {
 		fmt.Println("  ✗", err)
 		return
 	}
+	// checking if company exits
+	_, err = database.GetCompanyByID(db, companyID)
+	if err != nil {
+		fmt.Println("No company by that id:", err)
+		return
+	}
 	currencyID, err := promptInt(scanner, "  Currency ID: ")
 	if err != nil {
 		fmt.Println("  ✗", err)