Standardize on c++ rather than cpp for code tabs

[jasondaming]

No description provided.

[sciencewhiz]

Looks tab-set-code needs to be changed to c++ also.

https://frc-docs--2472.org.readthedocs.build/en/2472/docs/software/dashboards/glass/field2d-widget.html#sending-trajectories-to-field2d

frc-docs/source/docs/software/dashboards/glass/field2d-widget.rst

Lines 54 to 66 in ffdeda5

	.. tab-set-code::
	.. rli:: https://github.com/wpilibsuite/allwpilib/raw/v2024.1.1-beta-4/wpilibjExamples/src/main/java/edu/wpi/first/wpilibj/examples/ramsetecontroller/Robot.java
	:language: java
	:lines: 44-61
	:linenos:
	:lineno-start: 44
	.. rli:: https://raw.githubusercontent.com/wpilibsuite/allwpilib/v2024.1.1-beta-4/wpilibcExamples/src/main/cpp/examples/RamseteController/cpp/Robot.cpp
	:language: cpp
	:lines: 18-30
	:linenos:
	:lineno-start: 18

[sciencewhiz]

There's a conflict to resolve

[jasondaming]

I also implemented the change to fix the :sync: in the command scheduler that you pushed. I went ahead and fixed all the tabbing issues.