Style tweaks in "add integration" pages.

templates/integrations/add_discord.html

@@ -19,7 +19,7 @@
 
         <form method="post" class="text-center">
             {% csrf_token %}
-            <a href="{{ authorize_url }}" class="btn btn-default">
+            <a href="{{ authorize_url }}" class="btn btn-lg btn-default">
                 <img class="ai-icon" src="{% static 'img/integrations/discord.png' %}" alt="Discord" />
                 Connect Discord
             </a>

templates/integrations/add_hipchat.html

@@ -16,7 +16,7 @@
 
         <div class="text-center">
             {% csrf_token %}
-            <a href="{{ install_url }}" class="btn btn-default">
+            <a href="{{ install_url }}" class="btn btn-lg btn-default">
                 <img class="ai-icon" src="{% static 'img/integrations/hipchat.png' %}" alt="HipChat" />
                 Connect HipChat
             </a>

templates/integrations/add_pushbullet.html

@@ -19,7 +19,7 @@
 
         <form method="post" class="text-center">
             {% csrf_token %}
-            <a href="{{ authorize_url }}" class="btn btn-default">
+            <a href="{{ authorize_url }}" class="btn btn-lg btn-default">
                 <img class="ai-icon" src="{% static 'img/integrations/pushbullet.png' %}" alt="Pushbullet" />
                 Connect Pushbullet
             </a>

templates/integrations/add_telegram.html

@@ -25,8 +25,8 @@
         <form method="post" class="text-center">
             {% csrf_token %}
 
-            <button type="submit" class="btn btn-default">
-                <img class="ai-icon" src="{% static 'img/integrations/telegram.png' %}" alt="Discord" />
+            <button type="submit" class="btn btn-lg btn-default">
+                <img class="ai-icon" src="{% static 'img/integrations/telegram.png' %}" alt="Telegram" />
                 Yes, connect Telegram
             </button>
         </form>