Upgrade to terminal 0.7.4

[ntno]

point to terminal.css version 0.7.4 (currently at 0.7.2)

would make progress on #144

Description

the "Terminal for MkDocs" theme is currently behind the terminal.css upstream. this change updates terminal/css/terminal.css to point to version 0.7.4 and makes a few updates to terminal/css/theme.css to maintain current behavior.

Changes

• pulls in terminal.css version 0.7.4
  • includes a fix to the <p> font color which should be set to font-color and not global-font-color
• specifies that <p> inside a <figcaption> should use secondary-color.

Testing

spun up local documentation server in Firefox and spot checked

Checklist

• [ ] I have added documentation for new/changed functionality in this PR or in mkdocs-terminal/documentation
• [x] All active GitHub checks for tests, formatting, and security are passing

[ntno]

upgrade issue - code blocks background color not filling the entire block:

local with 0.7.4

live with 0.7.2

fixed with override in theme.css

/* use the `code-bg-color` for `code` blocks */

pre code {
    background-color: var(--code-bg-color);
}

[ntno]

paragraph tag bug fix

<p></p> color should be font-color not global-font-color

[ntno]

fix font color in markdown-extended figcaption

when a user takes advantage of the "markdown in html" feature, their caption text is inserted inside of a <p> tag (inside the regular <figcaption> tag). after the fix mentioned above, the <p> tag will use font-color. however it makes more sense for <p> tags inside a <figcaption> to use the secondary color.

fixed in theme.css

/* set figcaption paragraph text to the secondary color.  this occurs when using markdown inside the figcaption */

figure>figcaption>p {
    color: var(--secondary-color);
}