fix: 画质选择器弹出方向改为向上，与其他控件保持一致

src/platforms/painting/controls/quality.vue

@@ -4,6 +4,7 @@
         :options="options"
         width="auto"
         class="quality-select"
+        position="top"
     >
         <template #prefix>
             <span class="quality-label">画质</span>
@@ -16,13 +17,13 @@ import Select from '@/components/Select/index.vue'
 
 const props = defineProps({
   modelValue: { type: String, default: 'medium' },
-  options: { type: Array, default: () => [] },
+  options: { type: Array, default: () => [] }
 })
 
 const emit = defineEmits(['update:modelValue'])
 const model = computed({
   get: () => props.modelValue,
-  set: (v) => emit('update:modelValue', v),
+  set: (v) => emit('update:modelValue', v)
 })
 </script>