refactor(city): clean up code

[shairez]

Overview

What is it?

• [x] Refactor

Description

Clean up the server functions code in Qwik city to make it easier to understand and to debug.

👉 NO PUBLIC API WAS CHANGED IN THIS PR

Checklist:

• [x] My code follows the developer guidelines of this project
• [x] I have performed a self-review of my own code
• [ ] I have made corresponding changes to the documentation
• [ ] Added new tests to cover the fix / functionality

[netlify[bot]]

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[pkg-pr-new[bot]]

Run & review this pull request in StackBlitz Codeflow.

commit: 58b663c

@builder.io/qwik

``` npm i https://pkg.pr.new/@builder.io/qwik@6581 ```

@builder.io/qwik-city

``` npm i https://pkg.pr.new/@builder.io/qwik-city@6581 ```

eslint-plugin-qwik

``` npm i https://pkg.pr.new/eslint-plugin-qwik@6581 ```

create-qwik

``` npm i https://pkg.pr.new/create-qwik@6581 ```

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