feat: Implement enableDecodeURI for decode the url

[Renishgotecha]

Enabling decodeURI functionality

This pull request aims to enable the decodeURI functionality in the main repository. By merging this commit, users will be able to easily utilize decodeURI by setting the enableDecodeURI flag to true.

Here is an example of how to use this feature:

const app = new Elysia()
.use(staticPlugin({
  enableDecodeURI: true,
  alwaysStatic: false
}))

Once this commit is merged, users can take advantage of the decodeURI functionality by simply enabling the enableDecodeURI flag. This enhancement will provide greater flexibility and convenience to users working with the repository. Thank you for considering this pull request.