fix(ol-webgl-tile-layer): make TileLayer a computed

closes #310

Author: d-koppenhagen

src/components/layers/OlWebglTileLayer.vue

@@ -6,7 +6,7 @@
 
 <script setup lang="ts">
 import type { Ref } from "vue";
-import { inject, provide, onUnmounted, onMounted, watch, ref } from "vue";
+import { inject, provide, onUnmounted, onMounted, watch, computed } from "vue";
 import TileLayer, { type Options } from "ol/layer/WebGLTile";
 import type Map from "ol/Map";
 import type { OverviewMap } from "ol/control";
@@ -23,7 +23,7 @@ const overViewMap = inject<Ref<OverviewMap | null> | null>("overviewMap", null);
 
 const { properties } = usePropsAsObjectProperties(props);
 
-const tileLayer = ref(new TileLayer(properties));
+const tileLayer = computed(() => new TileLayer(properties));
 
 watch(
   () => props.opacity,