add .trim() to searchString

[heysujal]

Fixes Issue

Closes #356

Changes proposed

I have added trim() to searchString which removes the leading and trailing spaces which were earlier being taken into account as a part of actual query resulting in empty response.

Check List (Check all the applicable boxes)

• My code follows the code style of this project.
• My change requires changes to the documentation.
• I have updated the documentation accordingly.
• All new and existing tests passed.
• This PR does not contain plagiarized content.
• The title of my pull request is a short description of the requested changes.

Screenshots

Before

After

[heysujal]

@Cahllagerfeld Please review.

[Cahllagerfeld]

Nice work!