Add:Tasks widget in appbar for merging m4bs & remove old m4b merge routes

client/components/app/Appbar.vue

@@ -7,7 +7,7 @@
         </nuxt-link>
 
         <nuxt-link to="/">
-          <h1 class="text-2xl font-book mr-6 hidden lg:block hover:underline">audiobookshelf</h1>
+          <h1 class="text-2xl font-book mr-6 hidden lg:block hover:underline">audiobookshelf <span v-if="showExperimentalFeatures" class="material-icons text-lg text-warning pr-1">logo_dev</span></h1>
         </nuxt-link>
 
         <ui-libraries-dropdown class="mr-2" />
@@ -15,7 +15,7 @@
         <controls-global-search v-if="currentLibrary" class="mr-1 sm:mr-0" />
         <div class="flex-grow" />
 
-        <span v-if="showExperimentalFeatures" class="material-icons text-2xl md:text-4xl text-warning pr-0 sm:pr-2 md:pr-4">logo_dev</span>
+        <widgets-notification-widget class="hidden md:block" />
 
         <ui-tooltip v-if="isChromecastInitialized && !isHttps" direction="bottom" text="Casting requires a secure connection" class="flex items-center">
           <span class="material-icons-outlined text-warning text-opacity-50"> cast </span>

client/components/modals/item/tabs/Tools.vue

@@ -42,7 +42,7 @@
         </div>
         <div class="flex-grow" />
         <div>
-          <ui-btn :to="`/audiobook/${libraryItemId}/manage`" class="flex items-center"
+          <ui-btn :to="`/audiobook/${libraryItemId}/manage?tool=embed`" class="flex items-center"
             >Open Manager
             <span class="material-icons text-lg ml-2">launch</span>
           </ui-btn>

client/components/widgets/NotificationWidget.vue

@@ -0,0 +1,25 @@
+<template>
+  <div v-if="tasksRunning" class="w-4 h-4 mx-3 relative">
+    <div class="flex h-full items-center justify-center">
+      <widgets-loading-spinner />
+    </div>
+  </div>
+</template>
+
+<script>
+export default {
+  data() {
+    return {}
+  },
+  computed: {
+    tasks() {
+      return this.$store.state.tasks.tasks
+    },
+    tasksRunning() {
+      return this.tasks.some((t) => !t.isFinished)
+    }
+  },
+  methods: {},
+  mounted() {}
+}
+</script>