fix warnings and console errors

src/components/conversation/conversation.vue

@@ -29,7 +29,7 @@
       :replies="getReplies(status.id)"
       :in-profile="inProfile"
       :profile-user-id="profileUserId"
-      :virtualHidden="virtualHidden"
+      :virtual-hidden="virtualHidden"
       class="status-fadein panel-body"
       @goto="setHighlight"
       @toggleExpanded="toggleExpanded"

src/components/settings/settings.vue

@@ -76,9 +76,9 @@
                 <li>
                   <Checkbox v-model="useStreamingApi">
                     {{ $t('settings.useStreamingApi') }}
-                    <br/>
+                    <br>
                     <small>
-                    {{ $t('settings.useStreamingApiWarning') }}
+                      {{ $t('settings.useStreamingApiWarning') }}
                     </small>
                   </Checkbox>
                 </li>

src/components/still-image/still-image.js

@@ -18,14 +18,16 @@ const StillImage = {
   },
   methods: {
     onLoad () {
-      this.imageLoadHandler && this.imageLoadHandler(this.$refs.src)
+      const image = this.$refs.src
+      if (!image) return
+      this.imageLoadHandler && this.imageLoadHandler(image)
       const canvas = this.$refs.canvas
       if (!canvas) return
-      const width = this.$refs.src.naturalWidth
+      const width = image.naturalWidth
-      const height = this.$refs.src.naturalHeight
+      const height = image.naturalHeight
       canvas.width = width
       canvas.height = height
-      canvas.getContext('2d').drawImage(this.$refs.src, 0, 0, width, height)
+      canvas.getContext('2d').drawImage(image, 0, 0, width, height)
     },
     onError () {
       this.imageLoadError && this.imageLoadError()

src/components/timeline/timeline.vue

@@ -34,7 +34,10 @@
       </div>
     </div>
     <div :class="classes.body">
-      <div ref="timeline" class="timeline">
+      <div
+        ref="timeline"
+        class="timeline"
+      >
         <template v-for="statusId in pinnedStatusIds">
           <conversation
             v-if="timeline.statusesObject[statusId]"
@@ -56,7 +59,7 @@
             :collapsable="true"
             :in-profile="inProfile"
             :profile-user-id="userId"
-            :virtualHidden="virtualScrollingEnabled && !statusesToDisplay.includes(status.id)"
+            :virtual-hidden="virtualScrollingEnabled && !statusesToDisplay.includes(status.id)"
           />
         </template>
       </div>