prod-build fix

Signed-off-by: Roman <ixrock@gmail.com>

types/mocks.d.ts

@@ -4,6 +4,9 @@ declare module "win-ca"
 declare module "@hapi/call"
 declare module "@hapi/subtext"
 
+// Global path to static assets
+declare const __static: string;
+
 // Support import for custom module extensions
 // https://www.typescriptlang.org/docs/handbook/modules.html#wildcard-module-declarations
 declare module "*.scss" {