Refactor UI styles for improved consistency and clarity

Unified card backgrounds, borders, and shadows across components for a more consistent look. Enhanced table, tab, and button styles for clarity and accessibility. Improved layout and modal structure in OneBot API debug, added modal for struct display, and optimized WebSocket debug connection logic. Updated file manager, logs, network, and terminal pages for visual consistency. Refactored interface definitions for stricter typing and readability.

packages/napcat-webui-frontend/src/pages/dashboard/terminal.tsx

@@ -112,7 +112,7 @@ export default function TerminalPage () {
           className='h-full overflow-hidden'
         >
           <div className='flex items-center gap-2 flex-shrink-0 flex-grow-0'>
-            <TabList className='flex-1 !overflow-x-auto w-full hide-scrollbar'>
+            <TabList className='flex-1 !overflow-x-auto w-full hide-scrollbar bg-white/40 dark:bg-black/20 backdrop-blur-md p-1 rounded-lg border border-white/20'>
               <SortableContext
                 items={tabs}
                 strategy={horizontalListSortingStrategy}