Improving Shortcut Guide Navigation and Readability

### Description of the new feature / enhancement

Introduce a search bar to the Shortcut Guide so users can quickly search for specific shortcuts. Additionally, adding visual icons to the listed keyboard shortcuts which will make them more recognizable and easier to scan. From UI perspective, improving the layout by grouping shortcuts into distinct, prominent cards for each section instead of the current list format will also help in readibility.

### Scenario when this would be used?

This would be used whenever a user needs to navigate the comprehensive list of shortcuts. The search bar will enable them to instantly locate a specific command without manual searching. The use of cards to divide sections will provide a cleaner, more organized interface, and the visual icons will allow users to scan and identify relevant shortcuts at a glance, significantly improving the overall user experience.

### Supporting information

_No response_