fix: abnormal styles (#711)

web/app/components/app/chat/index.tsx

             )}
             {
               isShowSuggestion && (
-                <div className='pt-2 mb-2 '>
+                <div className='pt-2'>
                   <div className='flex items-center justify-center mb-2.5'>
                     <div className='grow h-[1px]'
                       style={{

web/app/components/app/chat/style.module.css

 .answerIcon {
   position: relative;
-  background: url(./icons/robot.svg);
+  background: url(./icons/robot.svg) 100%/100%;
 }
 
 .typeingIcon {

web/app/components/explore/app-list/index.tsx

         onChange={setCurrCategory}
       />
       <div
-        className='flex mt-6 flex-col overflow-auto bg-gray-100 shrink-0 grow'
+        className='flex mt-6 pb-6 flex-col overflow-auto bg-gray-100 shrink-0 grow'
         style={{
           maxHeight: 'calc(100vh - 243px)',
         }}