Add ability to manually define the reading speed

Instead of using a select, let the user decide its own speed.

src/Wallabag/CoreBundle/Resources/views/themes/baggy/Entry/entries.html.twig

@@ -46,7 +46,7 @@
         <div id="entry-{{ entry.id|e }}" class="{% if listMode == 0 %}entry{% else %}listmode entry{% endif %}">
             <h2><a href="{{ path('view', { 'id': entry.id }) }}" title="{{ entry.title|e|raw }}">{{ entry.title | striptags | truncate(80, true, '…') | default('entry.default_title'|trans) | raw }}</a></h2>
 
-            {% set readingTime = entry.readingTime / app.user.config.readingSpeed %}
+            {% set readingTime = entry.readingTime / app.user.config.readingSpeed * 200 %}
             <div class="estimatedTime">
                     <span class="tool reading-time">
             {% if readingTime > 0 %}

src/Wallabag/CoreBundle/Resources/views/themes/baggy/Entry/entry.html.twig

@@ -62,7 +62,7 @@
             {% endif %}
 
             <i class="tool icon icon-time">
-                {% set readingTime = entry.readingTime / app.user.config.readingSpeed %}
+                {% set readingTime = entry.readingTime / app.user.config.readingSpeed * 200 %}
                 {% if readingTime > 0 %}
                     {{ 'entry.list.reading_time_minutes_short'|trans({'%readingTime%': readingTime|round}) }}
                 {% else %}

src/Wallabag/CoreBundle/Resources/views/themes/material/Entry/_reading_time.html.twig

@@ -1,4 +1,4 @@
-{% set readingTime = entry.readingTime / app.user.config.readingSpeed %}
+{% set readingTime = entry.readingTime / app.user.config.readingSpeed * 200 %}
 <i class="material-icons">timer</i>
 {% if readingTime > 0 %}
     <span>{{ 'entry.list.reading_time_minutes_short'|trans({'%readingTime%': readingTime|round}) }}</span>