Improve layout and responsiveness across various pages

[dounmte]

This pull request focuses on improving the user interface and user experience of dropdowns and select inputs across the application, especially for service and location selection. It introduces a new ResponsiveSelect component for enhanced dropdown usability, replaces native <select> elements in key forms, and makes several visual and layout refinements for better consistency and responsiveness.

Key changes include:

UI Component Improvements

• Added a new ResponsiveDropdown and ResponsiveSelect component in ResponsiveDropdown.tsx to provide a more accessible and mobile-friendly dropdown/select experience, including keyboard navigation, dynamic positioning, and loading/error states.
• Replaced native <select> elements with the new ResponsiveSelect in ServiceDetails.tsx (for service category selection) and ServiceLocation.tsx (for province and city selection), streamlining event handling and visual consistency. [1] [2]

Form Handling and Logic Updates

• Simplified and refactored event handlers for category, province, and city selection to work with the new ResponsiveSelect component, improving code clarity and reducing boilerplate. [1] [2] [3]

Layout and Styling Adjustments

• Reduced excessive bottom padding in main content containers on booking and home pages for a more balanced layout ([id].tsx, home.tsx, confirmation.tsx, etc.). (src/frontend/src/pages/client/book/[id].tsxL1588-R1588, src/frontend/src/pages/client/book/[id].tsxL1790-R1790, [1] [2] [3]
• Updated notification page button styles for better responsiveness and consistency across client and provider views. [1] [2] [3] [4]
• Improved layout of provider details and call-to-action cards for better mobile and desktop presentation. (src/frontend/src/pages/client/home.tsxL90-R90, src/frontend/src/pages/client/service/[id].tsxL683-R683)

These changes collectively enhance the application's accessibility, responsiveness, and overall user experience, especially on forms and selection-heavy pages.