Some code editing featres

[dada878]

Is there an existing issue for this?

• I have searched the existing issues

Is this feature provided in the master branch?

• I have checked the changelog

The problem you are facing

No response

Describe the feature you'd like

Hello guys, I want to suggest some features, hope you can make it in the future, thx.

Variables Rename

Select a variable and press F2, you can rename that as a new name and apply it to all the same name variables used in the file.

Find Variables

Press Ctrl and click a variable, that will scroll and focus on the line where we defined the variable.

More Code Highlight

Some codes statement such as "string", "map", and "vector" in c++ are not have any color, I think we can color that like "int".

Copy, Cut, and Paste

Focus on a line without selecting any words, press Ctrl+C or Ctrl+X we can copy or cut the current line, and when we press Ctrl+V, that will paste into the next line;

Describe alternatives you've considered

No response

Are you willing to contribute to this?

• I'm ready to contribute to this (and will open a PR soon)
• I'd like to have a try (with the help of the maintainers)
• No, thanks

Anything else?

I really want to contribute to the project, but I'm bad at c++ :((
So I think I can suggest some features and report some bugs I encounter to help you.
thx.