fix: handle keyboard shortcut for text filter

[CodyWMitchell]

Handle keyboard shortcut for text filter

• Pressing / will focus the text filter

OCPBUGS-63391

[patternfly-build]

Preview: https://react-data-view-pr-data-view-594.surge.sh

A11y report: https://react-data-view-pr-data-view-594-a11y.surge.sh

[nicolethoen]

since this component attaches a window-level event listener, consuming applications don't currently have a way to opt out of this behavior.

This could be problematic in scenarios where:

1. The application wants to manage keyboard shortcuts at a higher level (e.g.,
   in a centralized keyboard handler)
2. Multiple DataViewTextFilter instances exist on the same page, causing
   multiple listeners to fire
3. The / shortcut conflicts with existing application shortcuts

Could we consider an optional prop in case they want more fine tuned control over this feature?

export interface DataViewTextFilterProps extends SearchInputProps {
  // ... existing props
  /** Enable keyboard shortcut (/) to focus the filter. Defaults to true. */
  enableShortcut?: boolean;
}