Prevent Receipt Search Page Reload

[artkolpakov]

Description

Previously, pressing "Enter" keyboard key after typing a receipt search query on the receipt management dashboard caused the entire page to refresh due to default form submission behavior, leading to a confusing user experience. This PR fixes the issue by preventing the default page reload on search form submission.

Checklist

• [X] Ran the Black Formatter and djLint-er on any new code (checks will fail without)
• [X] Made any changes or additions to the documentation where required
• [X] Changes generate no new warnings/errors
• [X] New and existing unit tests pass locally with my changes

What type of PR is this?

• 🐛 Bug Fix

Added/updated tests?

• 🙅 no, because they aren't needed

Related PRs, Issues etc

• Closes #393