Add Flags Assets and Update Configuration

- Introduced multiple SVG flag assets to the project, enhancing the visual representation of country flags.
- Updated the configuration file to include a new path for the flags assets, ensuring proper access and organization.
- Modified the main application to accommodate the new flags path, improving the overall asset management in the application.

cmd/web/bootstrap/config.go

@@ -13,6 +13,7 @@ type Config struct {
 	RateLimit    config.RateLimitConfig `mapstructure:"rate_limiting"`
 	UserAuth     AuthConfig             `mapstructure:"user_authorization"`
 	CustomerAuth AuthConfig             `mapstructure:"customer_authorization"`
+	Assets       AssetsConfig           `mapstructure:"assets"`
 }
 
 type AuthConfig struct {
@@ -25,3 +26,7 @@ type JWTConfig struct {
 	AccessExpiresIn  int    `mapstructure:"access_expires_in"`
 	RefreshExpiresIn int    `mapstructure:"refresh_expires_in"`
 }
+
+type AssetsConfig struct {
+	FlagsPath string `mapstructure:"flags_path"`
+}