Fixes #139 ignore white space character for search with dialpad numbers

[Honk2]

What is it?

• [X] Bugfix
• [ ] Feature
• [ ] Codebase improvement

Description of the changes in your PR

When searching contacts using the dialpad, 1 is handled as space character. Also the white space symbol |_| is displayed below the 1 on the dialpad.

Fixes the following issue(s)

• Fixes #139 partly. Following the example given, Tom Cruise would by found by typing 8-6-6-1-3
• Does not fix the turkish character issue

Acknowledgement

• [X] I read the contribution guidelines.