Add Vue debounce plugin

lib/www/client/source/package-lock.json

@@ -9973,6 +9973,11 @@
         }
       }
     },
+    "vue-debounce": {
+      "version": "2.5.7",
+      "resolved": "https://registry.npmjs.org/vue-debounce/-/vue-debounce-2.5.7.tgz",
+      "integrity": "sha512-weyMz0ee6xHLCJ+HrvfkVUQqBsH7Jx359yLTmfnmpb8fDUD3HZEwd2ZHoq+sZjcYR7JcW7B9FlqjJA2IJXqscg=="
+    },
     "vue-hot-reload-api": {
       "version": "2.3.4",
       "resolved": "https://registry.npmjs.org/vue-hot-reload-api/-/vue-hot-reload-api-2.3.4.tgz",

lib/www/client/source/package.json

@@ -13,6 +13,7 @@
     "leaflet": "^1.6.0",
     "typeface-roboto": "0.0.75",
     "vue": "^2.6.11",
+    "vue-debounce": "^2.5.7",
     "vue-router": "^3.2.0",
     "vuetify": "^2.3.4",
     "vuex": "^3.5.1"

lib/www/client/source/src/main.js

@@ -3,9 +3,12 @@ import App from './App.vue'
 import router from './router'
 import store from './store'
 import vuetify from './plugins/vuetify'
+import vueDebounce from 'vue-debounce'
 
 Vue.config.productionTip = false
 
+Vue.use(vueDebounce);
+
 new Vue({
   data () {
     return {