Cannot navigate to the edit page even after clicking "Edit this page".

[Reimei1213]

What happened:
Clicking “Edit this page” in the upper right corner takes me to an unintended page.

• Extra slash between en and docs-v0.49.x in url
• Missing .md extension

What you expected to happen:

I wanted to transition to this page.

How to reproduce it:

https://pipecd.dev/docs-v0.49.x/user-guide/metrics/

Environment:

• piped version:
• control-plane version:
• Others:

[ntheanh201]

IMO, this happened because of this commit: #5017
When I ran Hugo locally with version 0.92.1, this issue didn't happen.
When I ran Hugo locally with version 0.128.0, this issue happened.

[khanhtc1202]

@ntheanh201 @Reimei1213 Thanks for noticing us.

Could you also check the "Edit this page" link on this page? ref: https://pipecd.dev/docs-v0.49.x/quickstart/

Looks like if the docs markdown file is _index.md under the path name, it could jump correctly. So, for whatever fix, please ensure it also works with this kind of link.