Adding a Caret Position Indicator

Relevant sub-area for this feature?

Core/Environment/Rendering

Feature description

I think it would be beneficial to have a caret position indicator, similar to as seen in common text editors, for displaying the caret line and column. This may appear in the bottom right, next to the version number, as so:

A user would have control over the visibility of the indicator in preferences. The default would be non-visible, as to not crowd the display. Preference may show as:

Benefits

There are several benefits from having a caret indicator:

1. In larger sketches, knowing the location of the caret may help users navigate more efficiently
2. When debugging or collaborating, knowing the precise location in code removes ambiguity
3. Reduces the need for 'counting characters' when selecting/copying/pasting/deleting code

Possible challenges

Possible challenges may revolve around adding support for different languages in the preferences window.

Additional context

No response

Would you like to work on the issue?

Yes. I already have some working code for this feature, which can be ironed out.

首先定位 Core/Environment/Rendering 区域和首选项窗口，然后查看 issue 作者现有的可运行代码。当编辑器在版本号附近显示插入符号所在的行和列、默认保持隐藏，并且可以在首选项中启用或禁用时，此功能即完成。