fix: eslint errors

Author: Guillaume Chau

src/components/VirtualScroller.vue

@@ -1,48 +1,48 @@
 <template>
   <component
+    v-observe-visibility="handleVisibilityChange"
     :is="mainTag"
-    class="virtual-scroller"
     :class="cssClass"
+    class="virtual-scroller"
     @scroll.passive="handleScroll"
-    v-observe-visibility="handleVisibilityChange"
   >
     <slot
       name="before-container"
     />
     <component
       ref="itemContainer"
       :is="containerTag"
-      class="item-container"
       :class="containerClass"
       :style="itemContainerStyle"
+      class="item-container"
     >
       <slot
         name="before-content"
       />
       <component
         ref="items"
         :is="contentTag"
-        class="items"
         :class="contentClass"
         :style="itemsStyle"
+        class="items"
       >
         <template v-if="renderers">
           <component
-            class="item"
             v-for="(item, index) in visibleItems"
             :key="keysEnabled && item[keyField] || undefined"
             :is="renderers[item[typeField]]"
             :item="item"
             :item-index="$_startIndex + index"
+            class="item"
           />
         </template>
         <template v-else>
           <slot
-            class="item"
             v-for="(item, index) in visibleItems"
             :item="item"
             :item-index="$_startIndex + index"
             :item-key="keysEnabled && item[keyField] || undefined"
+            class="item"
           />
         </template>
       </component>
@@ -62,14 +62,15 @@ import Scroller from '../mixins/scroller'
 import config from '../config'
 
 export default {
-  name: 'virtual-scroller',
+  name: 'VirtualScroller',
 
   mixins: [
     Scroller,
   ],
 
   props: {
     renderers: {
+      type: Object,
       default: null,
     },
     keyField: {
@@ -85,13 +86,15 @@ export default {
       default: 'div',
     },
     containerClass: {
+      type: [String, Array, Object],
       default: null,
     },
     contentTag: {
       type: String,
       default: 'div',
     },
     contentClass: {
+      type: [String, Array, Object],
       default: null,
     },
     poolSize: {