Fix CSS formatting

[ntno]

Description

This change should be no-op. It formats the top level CSS files in the main/terminal/css folder using the following config in VSCode:

    "css": {
        "indent_size": 4,
        "indentCharacter": " ",
        "indent_char": " ",
        "selector_separator_newline": true,
        "end_with_newline": false,
        "newline_between_rules": true,
        "eol": "\n"
    }

The purpose of this PR is to make future changes to the CSS easier to review.

Testing

• Firefox: ran the local documentation site locally and compared the pages to the live site. visual inspection showed that the pages looked the same between sites
• spot checked Safari and Google Chrome