Use the template packages.html

[dalf]

Update engines to use packages.html :

• cargo: [Feat] Add cargo package search #3487
• codeberg: [feat] gitea: implement dedicated module #3468
• gitea : [feat] gitea: implement dedicated module #3468
• hex: [mod] package.html template: additional links (a python dict) #3464
• lib.rs: [feat] lib.rs: use packages.html template #3299
• npm: npm engine: use packages.html #3263
• pkg.go.dev: [feat] pkg.go.dev: use packages.html template #3301
• pypi : pypi engine: use packages.html #3249
• docker hub
• anaconda (which belong to the packages category)
• hoogle
• metacpan
• packagist
• pub.dev
• rubygems

[Bnyro]

I would like to look into lib.rs and pkg.go.dev some day when I have more time again.