Export SafeEventEmitterProvider as class instead of type

Author: MajorLift

packages/eth-json-rpc-provider/src/index.test.ts

@@ -4,6 +4,7 @@ describe('Package exports', () => {
   it('has expected exports', () => {
     expect(Object.keys(allExports)).toMatchInlineSnapshot(`
       Array [
+        "SafeEventEmitterProvider",
         "providerFromEngine",
         "providerFromMiddleware",
       ]

packages/eth-json-rpc-provider/src/index.ts

@@ -1,3 +1,3 @@
 export * from './provider-from-engine';
 export * from './provider-from-middleware';
-export type { SafeEventEmitterProvider } from './safe-event-emitter-provider';
+export { SafeEventEmitterProvider } from './safe-event-emitter-provider';