Is your feature request related to a problem? Please describe.
CI workflow still uses Xcode 11.7 https://github.com/SwifterSwift/SwifterSwift/blob/master/.github/workflows/CI.yml

Describe the solution you'd like
We should update both CI to use the latest available Xcode.
Together all project things that needs updating also.

Describe alternatives you've considered
A clear and

We currently use a macro for writing down a money amount as a literal. We should move to a more modern C++ representation with a user defined literal like the below:

constexpr money32 operator"" _GBP(long double money)
{
    return money * 10;
}

static_assert(MONEY(2, 40) == 2.40_GBP);

Go through the codebase and replace all MONEY macro uses with the equivalent version. You m

I'd like there to be an option to have code blocks be line wrapped. Maybe a check box for it in Rendering -> "Syntax highlighted code block" next to "Show line numbers" etc.?

If I try hard enough I can dig through the css files in Contents/Resources/Prism/themes and change "white-space: pre;" to "white-space: pre-wrap;", but doing so breaks the code signature of the app. And that's not a very n

https://developer.apple.com/design/human-interface-guidelines/macos/indicators/progress-indicators/

Our custom calendar has accessibility issues. Both when scheduling a post and when selecting a date range from Activity Log:

• Unavailable (future) dates are not announced as unavailable.
• Dates of the week ( S M T W T F S) are incorrectly announced: eg. F is announced as “half-F, night sky”
• While scrolling up and down announcements say “Page 138” which is not super helpful. Maybe we can a