Beautify emails upon referee response to request

templates/email/referee_in_response_to_decision.html

-Dear {{invitation.referee.get_title_display}} {{invitation.referee.user.last_name}},\n\n
+Dear {{ invitation.referee.get_title_display }} {{ invitation.referee.user.last_name }},\n\n
 
-We hereby confirm your choice to {% if invitation.accepted %}accept{% else %}decline (due to reason: {{invitation.get_refusal_reason_display}}){% endif %} to referee Submission\n\n
+We hereby confirm your choice to {% if invitation.accepted %}accept{% else %}decline (due to reason: {{ invitation.get_refusal_reason_display }}){% endif %} to referee Submission\n\n
 
-{{invitation.submission.title}} by {{invitation.submission.author_list}}\n\n
+{{invitation.submission.title}}\n
+by {{ invitation.submission.author_list }}\n\n
 
 {% if invitation.accepted %}
 We will look forward to receiving your Report by the reporting deadline {{ invitation.submission.reporting_deadline|date:'Y-m-d' }}.\n\n

templates/email/referee_in_response_to_decision_html.html

-<p>Dear {{invitation.referee.get_title_display}} {{invitation.referee.user.last_name}},</p>
+<p>Dear {{ invitation.referee.get_title_display }} {{ invitation.referee.user.last_name }},</p>
 
 <p>
-    We hereby confirm your choice to {% if invitation.accepted %}accept{% else %}decline (due to reason: {{invitation.get_refusal_reason_display}}){% endif %} to referee Submission
+    We hereby confirm your choice to {% if invitation.accepted %}accept{% else %}decline (due to reason: {{ invitation.get_refusal_reason_display }}){% endif %} to referee Submission
 </p>
 <p>
-    "{{invitation.submission.title}} by {{invitation.submission.author_list}}".
+  {{ invitation.submission.title }}
+  <br/>
+  by {{ invitation.submission.author_list }}.
 </p>
 
 <p>
     {% if invitation.accepted %}
     We will look forward to receiving your Report by the reporting deadline {{ invitation.submission.reporting_deadline|date:'Y-m-d' }}.
+    <br/>
     Many thanks for your collaboration,
     {% else %}
     Nonetheless, we thank you very much for considering this refereeing invitation,
     {% endif %}
-    <br>The SciPost Team.
+    <br/>The SciPost Team.
 </p>
 
 {% include 'email/_footer.html' %}

templates/email/referee_response_to_EIC.html

-Dear {{invitation.submission.editor_in_charge.get_title_display}} {{invitation.submission.editor_in_charge.user.last_name}},\n\n
+Dear {{ invitation.submission.editor_in_charge.get_title_display }} {{ invitation.submission.editor_in_charge.user.last_name }},\n\n
 
-Referee {% if invitation.referee %}{{invitation.referee.get_title_display}} {{invitation.referee.user.last_name}}{% else %}{{ invitation.title }} {{ invitation.first_name }} {{ invitation.last_name }}{% endif %} has {% if invitation.accepted %}accepted{% else %}declined (due to reason: {{invitation.get_refusal_reason_display}}){% endif %} to referee Submission\n\n
+Referee {% if invitation.referee %}{{ invitation.referee.get_title_display }} {{ invitation.referee.user.last_name }}{% else %}{{ invitation.title }} {{ invitation.first_name }} {{ invitation.last_name }}{% endif %} has {% if invitation.accepted %}accepted{% else %}declined (due to reason: {{ invitation.get_refusal_reason_display }}){% endif %} to referee Submission\n\n
 
-{{invitation.submission.title}} by {{invitation.submission.author_list}}\n\n
+{{ invitation.submission.title }}\n by {{ invitation.submission.author_list }}\n\n
 
 {% if not invitation.accepted %}
 Please invite another referee from the Submission\'s editorial page at https://scipost.org{% url 'submissions:editorial_page' invitation.submission.arxiv_identifier_w_vn_nr %}.\n\n

templates/email/referee_response_to_EIC_html.html

-<p>Dear {{invitation.submission.editor_in_charge.get_title_display}} {{invitation.submission.editor_in_charge.user.last_name}},</p>
+<p>Dear {{ invitation.submission.editor_in_charge.get_title_display }} {{ invitation.submission.editor_in_charge.user.last_name }},</p>
 
 <p>
-    Referee {% if invitation.referee %}{{invitation.referee.get_title_display}} {{invitation.referee.user.last_name}}{% else %}{{ invitation.title }} {{ invitation.first_name }} {{ invitation.last_name }}{% endif %} has {% if invitation.accepted %}accepted{% else %}declined (due to reason: {{invitation.get_refusal_reason_display}}){% endif %} to referee Submission
+    Referee {% if invitation.referee %}{{ invitation.referee.get_title_display }} {{ invitation.referee.user.last_name }}{% else %}{{ invitation.title }} {{ invitation.first_name }} {{ invitation.last_name }}{% endif %} has {% if invitation.accepted %}accepted{% else %}declined (due to reason: {{ invitation.get_refusal_reason_display }}){% endif %} to referee Submission
 </p>
 <p>
-    "{{invitation.submission.title}} by {{invitation.submission.author_list}}".
+  {{ invitation.submission.title }}
+  <br/>
+  by {{ invitation.submission.author_list }}.
 </p>
 
 {% if not invitation.accepted %}
@@ -14,7 +16,7 @@
 {% endif %}
 
 <p>
-    Many thanks for your collaboration,<br>
+    Many thanks for your collaboration,<br/>
     The SciPost Team.
 </p>