refactor: remove dead code (#5801)

* change: remove experimental feature auditLog & relatedChats

resolves #5773

Follow-up to #5786.

Author: WofWca

packages/frontend/scss/dialogs/_autocrypt_setup.scss

@@ -73,15 +73,6 @@ input.group-name-input {
   }
 }
 
-// same padding as contacts here
-.group-related-chats-list-wrapper {
-  margin-top: 8px;
-  .chat-list-item,
-  .pseudo-chat-list-item {
-    padding-inline-start: 20px;
-  }
-}
-
 .group-profile-subtitle {
   text-align: center;
   padding-top: 6px;

packages/frontend/scss/dialogs/_group-styles.scss

@@ -30,7 +30,6 @@
 
 // Dialogs
 @use 'dialogs/_about';
-@use 'dialogs/_autocrypt_setup.scss';
 @use 'dialogs/_select-chat';
 @use 'dialogs/_group-styles';
 @use 'dialogs/_settings';

packages/frontend/scss/manifest.scss

@@ -163,7 +163,6 @@ $scrollbarTransparency: 0.34 !default;
   --bp4Heading: #{$textPrimary};
   --bp4InputText: #{$textPrimary};
   --bp4InputPlaceholder: lightgray;
-  --bp4-input-focused: #{$colorPrimary};
   --bp4MenuText: #{$textPrimary};
   --bp4MenuBg: #{$bgPrimary};
   --bp4Switch: #7a8084;