Convert english translation file

- convert english translation to translate key
- remove baggy template for login (never used since user isn't logged in and it'll use the default theme: material)
- fix tests about text in response (now checking translation key instead of translated text)
- remove all ugly `<div class="hidden">{{ form_rest(form) }}</div>`

src/Wallabag/UserBundle/Resources/views/Registration/checkEmail.html.twig

@@ -0,0 +1,11 @@
+{% extends "FOSUserBundle::layout.html.twig" %}
+
+{% trans_default_domain 'FOSUserBundle' %}
+
+{% block fos_user_content %}
+<div class="card-content">
+    <div class="row">
+        <p>{{ 'registration.check_email'|trans({'%email%': user.email}) }}</p>
+    </div>
+</div>
+{% endblock fos_user_content %}

src/Wallabag/UserBundle/Resources/views/Registration/confirmed.html.twig

@@ -0,0 +1,17 @@
+{% extends "FOSUserBundle::layout.html.twig" %}
+
+{% trans_default_domain 'FOSUserBundle' %}
+
+{% block fos_user_content %}
+<div class="card-content">
+    <div class="row">
+        <p>{{ 'registration.confirmed'|trans({'%username%': user.username}) }}</p>
+        {% if targetUrl %}
+        <p><a href="{{ targetUrl }}">{{ 'registration.back'|trans }}</a></p>
+        {% endif %}
+    </div>
+    <div class="card-action center">
+        <a href="{{ path('homepage') }}" class="waves-effect waves-light btn"><i class="material-icons left"></i> {{ 'security.register.go_to_account'|trans }}</a>
+    </div>
+</div>
+{% endblock fos_user_content %}

src/Wallabag/UserBundle/Resources/views/Registration/register_content.html.twig

@@ -0,0 +1,45 @@
+{% trans_default_domain 'FOSUserBundle' %}
+
+{{ form_start(form, {'method': 'post', 'action': path('fos_user_registration_register'), 'attr': {'class': 'fos_user_registration_register'}}) }}
+    <div class="card-content">
+        <div class="row">
+
+            {{ form_widget(form._token) }}
+
+            {% for flashMessage in app.session.flashbag.get('notice') %}
+                <span class="black-text"><p>{{ flashMessage }}</p></span>
+            {% endfor %}
+
+            <div class="input-field col s12">
+                {{ form_errors(form.email) }}
+                {{ form_label(form.email) }}
+                {{ form_widget(form.email) }}
+            </div>
+
+            <div class="input-field col s12">
+                {{ form_errors(form.username) }}
+                {{ form_label(form.username) }}
+                {{ form_widget(form.username) }}
+            </div>
+
+            <div class="input-field col s12">
+                {{ form_errors(form.plainPassword.first) }}
+                {{ form_label(form.plainPassword.first) }}
+                {{ form_widget(form.plainPassword.first) }}
+            </div>
+
+            <div class="input-field col s12">
+                {{ form_errors(form.plainPassword.second) }}
+                {{ form_label(form.plainPassword.second) }}
+                {{ form_widget(form.plainPassword.second) }}
+            </div>
+        </div>
+    </div>
+    <div class="card-action center">
+        <a href="{{ path('fos_user_security_login') }}" class="waves-effect waves-light grey btn"><i class="material-icons left"></i> {{ 'security.login.submit'|trans }}</a>
+        <button class="btn waves-effect waves-light" type="submit" name="send">
+            {{ 'registration.submit'|trans({}, 'FOSUserBundle') }}
+            <i class="mdi-content-send right"></i>
+        </button>
+    </div>
+</form>