fix: Fix the product download link and delete the search in the build mirror

Created by: harrisonliu5

Signed-off-by: harrisonliu5 harrisonliu_5@163.com

What type of PR is this? /kind bug

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #2452 #446 (closed)

Special notes for reviewers:

Additional documentation, usage docs, etc.: