Fix Search form on smaller viewports

[obulat]

Fixes

Fixes #436 by @obulat
Related to #428 by @obulat

Description

This PR adjusts the styles of the search grid form on screens smaller than lg.
This is the view for small/large screen with these changes:

Here is the current version:

It also fixes the Checkbox checkmark for RTL by changing the left positioning value to start.

Testing Instructions

Run the app and search for something, change the screen width, open and close filters and see that the search form height is consistent, and there is a space between the "Filters" button and the search form.

Checklist

• My pull request has a descriptive title (not a vague title like Update index.md).
• My pull request targets the default branch of the repository (main) or a parent feature branch.
• My commit messages follow best practices.
• My code follows the established code style of the repository.
• I added or updated tests for the changes I made (if applicable).
• I added or updated documentation (if applicable).
• I tried running the project locally and verified that there are no visible errors.

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[sarayourfriend]

LGTM! 🚀

[dhruvkb]

LGTM!