[Glitch] Fix removal of border from account listing

Port a1ddaa9ee9 to glitch-soc

Signed-off-by: Claire <claire.github-309c@sitedethib.com>

app/javascript/flavours/glitch/styles/admin.scss

@@ -893,6 +893,7 @@ a.name-tag,
 
     .account {
       padding: 0;
+      border: none;
 
       &__avatar-wrapper {
         margin-inline-start: 0;

app/javascript/flavours/glitch/styles/components.scss

@@ -1990,6 +1990,7 @@ body > [data-popper-placement] {
 
 .account {
   padding: 10px; // glitch: reduced padding
+  border-bottom: 1px solid var(--background-border-color);
 
   .account__display-name {
     flex: 1 1 auto;