Merge pull request #24258 from overleaf/mj-ide-dark-mode-readonly-file

[web] Specify text color of readonly files

GitOrigin-RevId: c7395f4b693c9b413d60e0aba20cc78ea72efd86

services/web/frontend/stylesheets/bootstrap-5/pages/editor/file-view.scss

@@ -56,6 +56,7 @@
 
   .text-preview {
     margin-top: var(--spacing-05);
+    color: var(--content-primary);
 
     .scroll-container {
       background-color: var(--white);