Describe the bug

It is a CSS bug: when displaying decidim with an RTL Language, the search field border get's broken.

To Reproduce

Go to Developer Tools
In the Html Tag add dir="rtl"

Expected behavior

The border-right and border-left properties of both the input and the button should be swapped when displayed in RTL.

Screenshots

No response

Stacktrace

No response

Extra data

• Device:
• Device OS: MacOS
• Browser: ALL
• Decidim Version: 0.27.4 and 0.28 -> Here the button doesn't move to the right
• Decidim installation: don't know

Additional context

No response