Blix Add - Rename App to Router

[alocke12992]

When using blix add and blix new for react-router projects, blix creates a duplicate naming convention - App.js. Need to rename Router file in root dir from App.js to Router.js

Before:

project_dir
└── src
    ├── App.js
    ├── index.js

After:

project_dir
└── src
    ├── Router.js
    ├── index.js
    ├── components
          ├── App
              ├── App.js

• [x] Update view Script

• [x] Update new command with new format

• [x] Update add command with new format