Add tree-style thread display

src/components/thread_tree/thread_tree.vue

@@ -0,0 +1,55 @@
+<template>
+  <div class="thread-tree panel-body">
+    <status
+      :key="status.id"
+      ref="statusComponent"
+      :inline-expanded="collapsable && isExpanded"
+      :statusoid="status"
+      :expandable="!isExpanded"
+      :show-pinned="pinnedStatusIdsObject && pinnedStatusIdsObject[status.id]"
+      :focused="focused(status.id)"
+      :in-conversation="isExpanded"
+      :highlight="getHighlight()"
+      :replies="getReplies(status.id)"
+      :in-profile="inProfile"
+      :profile-user-id="profileUserId"
+      class="conversation-status status-fadein panel-body"
+      @goto="setHighlight"
+      @toggleExpanded="toggleExpanded"
+    />
+    <div
+      v-if="currentReplies.length"
+      class="thread-tree-replies"
+    >
+      <thread-tree
+        v-for="replyStatus in currentReplies"
+        :key="replyStatus.id"
+        ref="childComponent"
+        :status="replyStatus"
+
+        :in-profile="inProfile"
+        :conversation="conversation"
+        :collapsable="collapsable"
+        :is-expanded="isExpanded"
+        :pinned-status-ids-object="pinnedStatusIdsObject"
+        :profile-user-id="profileUserId"
+
+        :focused="focused"
+        :get-replies="getReplies"
+        :get-highlight="getHighlight"
+        :set-highlight="setHighlight"
+        :toggle-expanded="toggleExpanded"
+
+        class="conversation-status status-fadein panel-body"
+      />
+    </div>
+  </div>
+</template>
+
+<script src="./thread_tree.js"></script>
+
+<style lang="scss">
+.thread-tree-replies {
+  margin-left: 1em;
+}
+</style>