Refactor the code

[maheshj01]

As the package is growing the code quality is severely degraedd, this issue highlights some areas of improvement

• [ ] The code should be refactored to correctly detect taps on suggestions, Whether the tap was invoked via Keyboard or touch. Right now we only have a single method on suggestionTapped which does some repeated work such as recalculating the selected index
• [ ] Clean way to select and highlight from suggestions and searchResults