Update outdated in-app help links to new docs site structure

The help (?) links throughout the client pointed to the old
www.audiobookshelf.org/guides/* pages, which no longer exist and
resolve to a 404. Update all of them to the current
audiobookshelf.org/docs/documentation/* locations.

client/components/app/LazyBookshelf.vue

@@ -22,7 +22,7 @@
       <div v-if="entityName === 'collections' || entityName === 'playlists'" class="flex justify-center mt-4">
         {{ emptyMessageHelp }}
         <ui-tooltip :text="$strings.LabelClickForMoreInfo" class="inline-flex ml-2">
-          <a href="https://www.audiobookshelf.org/guides/collections" target="_blank" class="inline-flex">
+          <a href="https://audiobookshelf.org/docs/documentation/libraries/common-content/overview" target="_blank" class="inline-flex">
             <span class="material-symbols text-xl w-5 text-gray-200">help_outline</span>
           </a>
         </ui-tooltip>

client/components/modals/ShareModal.vue

@@ -8,7 +8,7 @@
     <div class="px-6 py-8 w-full text-sm rounded-lg bg-bg shadow-lg border border-black-300 overflow-y-auto overflow-x-hidden" style="max-height: 80vh">
       <div class="absolute top-0 right-0 p-4">
         <ui-tooltip :text="$strings.LabelClickForMoreInfo" class="inline-flex ml-2">
-          <a href="https://www.audiobookshelf.org/guides/media-item-shares" target="_blank" class="inline-flex">
+          <a href="https://audiobookshelf.org/docs/documentation/libraries/common-content/public-shares#media-item-shares" target="_blank" class="inline-flex">
             <span class="material-symbols text-xl w-5 text-gray-200">help_outline</span>
           </a>
         </ui-tooltip>

client/components/modals/collections/AddCreateModal.vue

@@ -25,7 +25,7 @@
             <div class="text-sm flex items-center justify-center text-gray-200">
               <p>{{ $strings.MessageBookshelfNoCollectionsHelp }}</p>
               <ui-tooltip :text="$strings.LabelClickForMoreInfo" class="inline-flex ml-2">
-                <a href="https://www.audiobookshelf.org/guides/collections" target="_blank" class="inline-flex">
+                <a href="https://audiobookshelf.org/docs/documentation/libraries/common-content/overview" target="_blank" class="inline-flex">
                   <span class="material-symbols text-xl w-5 text-gray-200">help_outline</span>
                 </a>
               </ui-tooltip>

client/components/modals/libraries/LibraryScannerSettings.vue

@@ -8,7 +8,7 @@
     <div class="flex items-center justify-between md:justify-start mb-4">
       <p class="text-sm text-gray-300 pr-2">{{ $strings.LabelMetadataOrderOfPrecedenceDescription }}</p>
       <ui-tooltip :text="$strings.LabelClickForMoreInfo" class="inline-flex">
-        <a href="https://www.audiobookshelf.org/guides/book-scanner" target="_blank" class="inline-flex">
+        <a href="https://audiobookshelf.org/docs/documentation/libraries/book-library/book-metadata" target="_blank" class="inline-flex">
           <span class="material-symbols text-xl w-5">help_outline</span>
         </a>
       </ui-tooltip>

client/components/modals/playlists/AddCreateModal.vue

@@ -25,7 +25,7 @@
             <div class="text-sm flex items-center justify-center text-gray-200">
               <p>{{ $strings.MessageNoUserPlaylistsHelp }}</p>
               <ui-tooltip :text="$strings.LabelClickForMoreInfo" class="inline-flex ml-2">
-                <a href="https://www.audiobookshelf.org/guides/collections" target="_blank" class="inline-flex">
+                <a href="https://audiobookshelf.org/docs/documentation/libraries/common-content/playlists" target="_blank" class="inline-flex">
                   <span class="material-symbols text-xl w-5 text-gray-200">help_outline</span>
                 </a>
               </ui-tooltip>