clear "selectedAccount" reducer on ACCOUNT.DISPOSE action

src/reducers/SelectedAccountReducer.js

@@ -38,6 +38,8 @@ export const initialState: State = {
 
 export default (state: State = initialState, action: Action): State => {
     switch (action.type) {
+        case ACCOUNT.DISPOSE:
+            return initialState;
         case ACCOUNT.UPDATE_SELECTED_ACCOUNT:
             return action.payload;
         default: