x/pkgsite: Show search bar and package path breadcumbs all the time

[p-kraszewski]

What is the URL of the page with the issue?

Any document on pkg.go.dev.

What is your user agent?

Mozilla/5.0 (X11; Linux x86_64; rv:104.0) Gecko/20100101 Firefox/104.0

What did you do?

• Open any documentation longer than a screenful

What did you expect to see?

• Open any documentation longer than a screenful
• Scroll down
• Header containing search bar and package navigation breadcrumb (Like Discover Packages > Standard library > container > list link set) visible all the time.

What did you see instead?

• Open any documentation longer than a screenful
• Scroll down
• Header containing search bar and package navigation breadcrumb (Like Discover Packages > Standard library > container > list link set) collapses.
• You have to scroll all the way up to be able to search or navigate to parent package.

[maiwald]

I would love to see this as well! I often find myself wanting to jump from one standard library package to another and always having to scroll to the top of the page to get to the breadcrumbs.
Maybe I am missing something but I really wonder why the "package" and "standard library" tags get to be shown permanently but not the breadcrumbs.

[enstenr]

I also feel this would be a great feature. Most of the time i have my documentation open while coding and when i am at tail end of a lengthy documentation page and want to switchover to another package, i have to scroll up all way to top before searching.
This would help out many like me.