Revert "Left align the input labels for the link account page (go-gitea#29255)"

This reverts commit e4e5d76.

Author: lunny

web_src/css/form.css

@@ -242,6 +242,7 @@ textarea:focus,
 .user.activate form,
 .user.forgot.password form,
 .user.reset.password form,
+.user.link-account form,
 .user.signup form {
   margin: auto;
   width: 700px !important;
@@ -276,6 +277,7 @@ textarea:focus,
   .user.activate form .inline.field > label,
   .user.forgot.password form .inline.field > label,
   .user.reset.password form .inline.field > label,
+  .user.link-account form .inline.field > label,
   .user.signup form .inline.field > label {
     text-align: right;
     width: 250px !important;