[improve] wider testing cases using Spectron

[muskankhedia]

Is your feature request related to a problem? Please describe.

Current, the Travis checks the commits against the eslint, building of the application. However, key components like working of in-browser features like input fields, transition or angular are not being tested.

Describe the solution you'd like
Spectron based testing facility using a web driver.
Reference

[PranavAgarkar07]

Hi! I'd like to work on this issue under GSSoC 2026.

Approach: I'll write Spectron integration tests that launch the Electron desktop app, simulate user queries (google, youtube, weather commands), and assert that the correct results render in the UI. The test suite will cover the critical user flows: search box input, result rendering, error states, and navigation between different query types. I'll also add a CI configuration to run these tests on pull requests using GitHub Actions with a virtual display (Xvfb).

I have experience with Electron testing using Spectron and WebDriverIO. Please assign me this issue.