relates #2234 follow up dark mode standardisation

Finish updating dark mode colours
Also make some general CSS changes

admin/themes/default/template/user_list.tpl

@@ -1544,12 +1544,12 @@ $(document).ready(function() {
 .user-container-initials-wrapper > span {
     border-radius:50%;
     padding:5px;
-    width:40px;
-    height:40px;
+    width:30px;
+    height:30px;
     display:inline-block;
     text-align:center;
     font-size:1.5em;
-    line-height:1.9em;
+    margin-left:7px;
 }
 
 .user-container-status {
@@ -3114,12 +3114,6 @@ Advanced filter
   margin-bottom: 35px;
 }
 
-.compactView .user-container-initials-wrapper > span {
-  height: 40px;
-  width: 40px;
-}
-
-
 .compactView .user-container {
   height: 50px;
   padding: 0 50px 0 0;
@@ -3155,8 +3149,8 @@ Advanced filter
   position: absolute;
   right: 0px;
 
-  height: 50px;
-  width: 50px;
+  height: 40px;
+  width: 40px;
   border-radius: 50%;
 
   display: flex;
@@ -3291,7 +3285,7 @@ Advanced filter
   justify-content: center;
 
   font-size: 10px;
-  padding: 1px 6px;
+  padding: 2px 6px;
   color: black;
 
   margin:0 4px 0 7px;