### Summary ReStructuredText files have broken syntax highlight for source view ### Steps to reproduce 1. Create *.rst file with code-block and specify language. 2. Open it in and ensure to select "Display source" option. ### Example Project Here is the project and reproducing file: [link](https://gitlab.com/deniskuplyakov/rst-syntax-highlight-broken/-/blob/main/README.rst?plain=1) ### What is the current *bug* behavior? No syntax highlighting applied. Document title should be highlighted and code inside the code-block too. ### What is the expected *correct* behavior? Syntax highlighting is applied. ### Output of checks This bug happens on GitLab.com