Update _2026.md

Author: palisadoes

docs/internships/gsoc-previous/_2026.md

@@ -159,7 +159,7 @@ Preparatory issues may be opened prior to the posting of this ideas page to faci
          3. Centralize shared logic
       4. Enhance maintainability
          1. Document components
-         2. Modular CSS styling
+         2. Modular CSS styling with a global sheet for other aspects.
    3. **Functionality:** You will also need to validate your work and those before you.
       1. Features: All existing screens must function as expected and have appropriate tests.
       2. UI/UX: Screens must be 100% compliant with the official figma design guide: