refactor(ReadAllButton): use new variables for ServerBlacklistModal style

Author: fedeericodl

plugins/ReadAllButton/src/components/ServerBlacklistModal.css

@@ -2,7 +2,7 @@
   display: flex;
   flex-direction: column;
   overflow: unset !important;
-  padding-left: 12px;
+  padding-left: calc(16px - var(--custom-add-permissions-modal-focus-ring-width));
   padding-right: 0 !important;
 }
 
@@ -11,15 +11,15 @@
   border-color: var(--background-tertiary);
   flex-shrink: 0;
   margin-bottom: 16px;
-  margin-left: 4px;
+  margin-left: var(--custom-add-permissions-modal-focus-ring-width);
   margin-right: 16px;
 }
 
 .readAllButton-blacklistItem {
   display: flex;
   flex-direction: row;
   margin-right: 8px;
-  padding: 6px 0 6px 4px;
+  padding: 6px 0 6px var(--custom-add-permissions-modal-focus-ring-width);
 }
 
 .readAllButton-blacklistItemIcon {