A new look for the ew-javascript

還沒有人認領這個 Issue。

With the new goals in mind, I think the website need an upgrade and also changing the file structure to improve the easiness of browsing the files.

~~I opened #1 with this purpose in mind.~~

## Overhaul the entire repo

I set my mind on entirely reformatting and divide the branches into 2 major version, which is:
- class-based approach (probably class-dev branch)
- procedural approach ([main-branch](https://github.com/EmptyWork/ew-javascript))

With one branch dedicate to showcase and contain website files for Demo purpose.

此 issue 沒有列出任何檔案、測試或進入點。首先檢視 repository 結構，並釐清提議中的類別式、程序式和 showcase 分支；只有在就 repository 重組和網站改版範圍達成共識後，才算完成。

由索引模型根據 Issue 內容生成。