style(interfaces): add blank line before session decode type

- Add blank line separating SessionCookieOpts and SessionDecodeResult

Author: NeaByteLab

src/interfaces/Middleware.ts

@@ -136,6 +136,7 @@ export type SecurityHeadersOptions = Partial<Record<SecurityHeaderKey, SecurityH
 
 /** Session cookie options all required. */
 export type SessionCookieOpts = Required<Omit<SessionOptions, 'cookieSecret'>>
+
 /** Decoded signed session cookie result. */
 export type SessionDecodeResult =
   | { readonly data: Types.DataRecord }