[IDE Tutorials] Standardize ordering of subsections between IntelliJ IDEA and VS Code guides

[JadeCheah]

Current

In the IDE tutorials overview, the order of listed subsections under IntelliJ IDEA and Visual Studio Code differs slightly.
For example:

• IntelliJ IDEA lists “Useful Settings” before “Useful Plugins.”
• VS Code lists “Useful Plugins” before “Useful Settings.”
  There are also a few other minor inconsistencies in sequencing (e.g., placement of “Refactoring” vs. “Refactoring Code,” capitalization of “Debugger,” etc.).

Proposed Solution

Standardizing the order would improve readability and make it easier for readers to compare tutorials across IDEs.

• Reorder the VS Code subsections to mirror the IntelliJ IDEA structure (or vice versa).

[damithc]

@JadeCheah Thanks for raising this. Yes, we can iron out the differences between the two lists, although it is not a big issue (given the reader would be using one of the two IDEs, not both).