Line length and padding options for the Editor in the Write section

[Tuba2]

Is your feature request related to a problem? Please describe.
The line length on the Editor in the Write section always takes up the whole textbox, with zero padding.
It makes for a poor writing experience, in my opinion, since it leaves no separation from the borders of the textbox and also forces the eyes to follow really long lines.

Describe the solution you'd like
A better default that allows for less eye travel and a more focused wriiting and reading experience, with more padding.
And/or, if possible, a setting by which the user may choose the amount of padding and the line length for the Write panel, similar to the line height option in Preferences.

Describe alternatives you've considered
I've tried to think of other options, but I believe this feature is present in most writing-focused text editors today, and for good reasons: it is ergonomic, comfortable, less distracting, and therefore allows for more focused writing experience and longer writing sessions.

Additional context

• Smaller window:

• Maximized window:

• Editor preferences:

• Same text in Apostrophe (smaller window):

• Same text in Apostrophe (maximized window):

[cgueret]

Indeed! Considering how the application is designed visually I would rather suggest to add a clamping on the editor. This is how it would look like:

Probably just a bit wider. We could mimic the size they picked for Apostrophe. On that screenshot I tried with 650px.

What do you think? I would prefer this approach as this gives a page impression and keep the formatting button close to the text as they are bundled with that page.

I think it also works fine with the sidebar:

(here with a maximum width of 850px to test how that feels like)