Migrated from Google material design icons to vuetify default MDI

app/imports/ui/properties/forms/shared/ProficiencySelect.vue

@@ -1,6 +1,6 @@
 <template lang="html">
   <smart-select
-    append-icon="arrow_drop_down"
+    append-icon="mdi-menu-down"
     :clearable="clearable"
     class="ml-3"
     v-bind="$attrs"
@@ -23,15 +23,15 @@
 	const ICON_SPIN_DURATION = 300;
 	let proficiencyIcon = function(value){
     if (value == 0.49){
-			return 'brightness_3';
+			return 'mdi-brightness-3';
 		} else if (value == 0.5){
-			return 'brightness_2';
+			return 'mdi-brightness-2';
 		} else if (value == 1) {
-			return 'brightness_1'
+			return 'mdi-brightness-1'
 		} else if (value == 2){
 			return 'album'
 		} else {
-			return 'radio_button_unchecked';
+			return 'mdi-radiobox-blank';
 		}
 	};
 
@@ -47,7 +47,7 @@
       },
 		},
 		data(){ return {
-			displayedIcon: 'radio_button_unchecked',
+			displayedIcon: 'mdi-radiobox-blank',
 			iconClass: '',
 			values: [
 				{value: 1, text: 'Proficient'},