Search for headings

[IAAJL]

Checklist

• I made sure that there are no existing issues - open or closed - to which I could contribute my information.
• I made sure that there are no existing discussions - open or closed - to which I could contribute my information.
• I have read the FAQs inside the app (Menu -> About -> FAQs) and my problem isn't listed.
• I have taken the time to fill in all the required details. I understand that the request will be dismissed otherwise.
• This issue contains only one feature request.
• I have read and understood the contribution guidelines.

Feature description

A search bar for searching different columns based on headings. Currently implemented search is only for text inside a file/column.

Why do you want this feature?

Filtering through different columns is difficult. A search in the column selector will be beneficial

Additional information

No response

[naveensingh]

It'll be handled in #76