Forces sidebar search to hide on desktop but show on mobile, when enabled

[mgibson323]

I am using the Docsy theme on a project for work. Our goal was to have search enabled but only have 1 search box displayed at a time. This can be accomplished by hiding the sidebar search in config.toml, but this also hides it for mobile users. This creates a problem since the search box on the main menu at the top of the page is hidden on mobile.

To fix this, I modified assets/scss/_sidebar-tree.scss and layouts/partials/sidebar-tree.html. The changes are trivial, but now the sidebar search box is hidden on desktop and shows on mobile - when it's enabled in config.toml.

There may be a better or more elegant way to do this so please feel free to implement it in whatever way makes sense for the project.

Thanks!

[googlebot]

Thanks for your pull request. It looks like this may be your first contribution to a Google open source project (if not, look below for help). Before we can look at your pull request, you'll need to sign a Contributor License Agreement (CLA).

📝 Please visit https://cla.developers.google.com/ to sign.

Once you've signed (or fixed any issues), please reply here with @googlebot I signed it! and we'll verify it.

---

What to do if you already signed the CLA

Individual signers

• It's possible we don't have your GitHub username or you're using a different email address on your commit. Check your existing CLA data and verify that your email is set on your git commits.

Corporate signers

• Your company has a Point of Contact who decides which employees are authorized to participate. Ask your POC to be added to the group of authorized contributors. If you don't know who your Point of Contact is, direct the Google project maintainer to go/cla#troubleshoot (Public version).
• The email used to register you as an authorized contributor must be the email used for the Git commit. Check your existing CLA data and verify that your email is set on your git commits.
• The email used to register you as an authorized contributor must also be attached to your GitHub account.

ℹ️ Googlers: Go here for more info.

[mgibson323]

@googlebot I signed it!

[googlebot]

CLAs look good, thanks!

ℹ️ Googlers: Go here for more info.

[LisaFC]

This looks really helpful, I'll take a proper look at how you've implemented it before I comment/merge but it seems like it should really help our mobile users.

[LisaFC]

Also should fix #211

[LisaFC]

Thanks!!