RFR: 8287118: Use monospace font for annotation default values

[Jonathan Gibbons]

On Sat, 21 May 2022 00:09:30 GMT, liach <duke at openjdk.java.net> wrote:

> Now the default values of annotation interface methods are rendered in `<code>` tags like the values on the constant values page.
> 
> Compare `BeanProperties` from [JDK 18](https://docs.oracle.com/en/java/javase/18/docs/api/java.desktop/java/beans/BeanProperty.html) and [this patch](https://cr.openjdk.java.net/~liach/8287118/java.desktop/java/beans/BeanProperty.html).

Marked as reviewed by jjg (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/8822