refactor(*): remove footer branding and extract ink drop-cap inline styles to CSS class

themes/mono/mail/user/auth/activate.tmpl

@@ -76,10 +76,6 @@
             <tr>
               <td width="60%" class="email-card card-body">
 
-                <p class="email-heading">
-                  {{.locale.Tr "mail.hi_user_x" (.DisplayName|DotEscape)}}
-                </p>
-
                 <p class="email-text">
                   {{.locale.Tr "mail.activate_account.text_1" (.DisplayName|DotEscape) AppName}}
                 </p>
@@ -127,7 +123,6 @@
 
           <p class="email-footer-text">
             <a href="{{AppUrl}}" class="email-footer-link">{{AppName}}</a>
-            &mdash; Gitea Mail Templates
           </p>
 
         </td>