docs(src): add examples alias and general cleanup (#2763)

src/globals.cpp

@@ -1,27 +1,13 @@
 /**
  * @file globals.cpp
- * @brief Implementation for globally accessible variables and functions.
+ * @brief Definitions for globally accessible variables and functions.
  */
 #include "globals.h"
 
-/**
- * @brief A process-wide communication mechanism.
- */
 safe::mail_t mail::man;
-
-/**
- * @brief A thread pool for processing tasks.
- */
 thread_pool_util::ThreadPool task_pool;
-
-/**
- * @brief A boolean flag to indicate whether the cursor should be displayed.
- */
 bool display_cursor = true;
 
 #ifdef _WIN32
-/**
- * @brief A global singleton used for NVIDIA control panel modifications.
- */
 nvprefs::nvprefs_interface nvprefs_instance;
 #endif