This PR optimizes the search experience by removing unnecessary mode toggling and improving UI responsiveness. The goal was to reduce cognitive load for the user and streamline the search workflow.

Key Changes:

1. Unified Search Logic: Removed the search mode toggle. Since email addresses, SHA hashes, and commit messages are distinct data sets, the search now queries all predefined fields simultaneously.
2. Performance Optimization: String conversion to lowercase is now performed once per commit set rather than repeatedly during the search execution.

UI Enhancements:

1. Added a Clear button to the search field for quicker input resets.
2. (Out of Scope): Removed an artificial delay that occurred before hiding the window when no repository was present.

Before

After (empty field)

After (search query is present)