The guide is displaying src/hackernews_post.rs instead of src/main.rs

In the ["Your First Component" section of the guide](https://dioxuslabs.com/learn/0.5/guide/your_first_component), it states:

> You can clear the src/main.rs file. We will be adding new code in the next sections.

However, all the examples (including those on the following pages of the guide) indicate in the header of the code block that the user should edit `src/hackernews_post.rs`.

Should this not be displayed instead as `src/main.rs`?

Start with the "Your First Component" section of the 0.5 guide and compare its instruction with the code-block headers on that page and the following pages. Update the displayed path so it consistently matches the file the guide tells users to edit, then verify the rendered examples show the corrected path.

Written by the indexing model from the issue text.