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

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

@@ -53,10 +53,6 @@
       <!-- Card -->
       <div style="padding:32px 32px 24px;color:#334155;">
 
-        <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>
@@ -87,7 +83,6 @@
         <p class="email-footer-text">
           &copy;
           <a href="{{AppUrl}}" class="email-footer-link">{{AppName}}</a>
-          &mdash; Gitea Mail Templates
         </p>
       </div>