* Add clear logs functionality
Other Changes:
- Add actions toolbar for actions pertaining to container logs
- Move Download button to actions toolbar, remove text and margin to match clear logs button
- Move search box below actions toolbar
- Turn off pointer events for scroll progress component so that Download button can be clicked
- Adjust spacing of container bar to accomodate the new actions toolbar
* Change actions toolbar into a floating menu
Other Changes:
- Move actions toolbar into its own component
- Move clear hotkey from LogEventSource to LogActionsToolbar, where the button is
- Move search back to where it was before
- Add tooltip component from buefy to annotate action buttons
- Add CSS variable for action toolbar background color, changes based on theme
