[add] migrate to percentages vs pages

[add] task runner
[fix] calculate word count on upload
[remove] unused queries

templates/activity.html

@@ -28,7 +28,7 @@
             scope="col"
             class="p-3 font-normal text-left uppercase border-b border-gray-200 dark:border-gray-800"
           >
-            Page
+            Percent
           </th>
         </tr>
       </thead>
@@ -51,7 +51,7 @@
             <p>{{ $activity.Duration }}</p>
           </td>
           <td class="p-3 border-b border-gray-200">
-            <p>{{ $activity.Page }} / {{ $activity.Pages }}</p>
+            <p>{{ $activity.ReadPercentage }}%</p>
           </td>
         </tr>
         {{end}}