Feat: Hide log button (#13085)

### What problem does this PR solve?

Feat: Hide log button
### Type of change


- [x] New Feature (non-breaking change which adds functionality)

web/src/pages/agent/explore/components/session-chat.tsx

@@ -139,6 +139,7 @@ export function SessionChat({ session }: SessionChatProps) {
                     index={i}
                     showLikeButton={false}
                     sendLoading={sendLoading}
+                    showLog={false}
                   />
                 ))}
               </div>

web/src/pages/agent/form/begin-form/index.tsx

@@ -142,6 +142,7 @@ function BeginForm({ node }: INextOperatorForm) {
                   <Textarea
                     rows={5}
                     {...field}
+                    className="overflow-auto"
                     placeholder={t('common.pleaseInput')}
                   ></Textarea>
                 </FormControl>