docs: Update and add comments

Author: Stubbjax

Generals/Code/GameEngine/Source/GameClient/MessageStream/SelectionXlat.cpp

@@ -957,8 +957,8 @@ GameMessageDisposition SelectionTranslator::translateGameMessage(const GameMessa
  				}
 				else
 				{
- 					//No GUI command mode, so deselect everyone if we're in regular mouse mode.
  					//In alternate mouse mode, right click still cancels building placement.
+					// TheSuperHackers @tweak Stubbjax 08/08/2025 Cancelling building placement no longer deselects the builder.
 					if (TheInGameUI->getPendingPlaceSourceObjectID() != INVALID_ID)
 					{
 						TheInGameUI->placeBuildAvailable(NULL, NULL);
@@ -967,6 +967,7 @@ GameMessageDisposition SelectionTranslator::translateGameMessage(const GameMessa
 					}
 					else if (!TheGlobalData->m_useAlternateMouse)
  					{
+						//No GUI command mode, so deselect everyone if we're in regular mouse mode.
  						deselectAll();
 						m_lastGroupSelGroup = -1;
  					}

GeneralsMD/Code/GameEngine/Source/GameClient/MessageStream/SelectionXlat.cpp

@@ -1033,8 +1033,8 @@ GameMessageDisposition SelectionTranslator::translateGameMessage(const GameMessa
 				}
 				else
 				{
-					//No GUI command mode, so deselect everyone if we're in regular mouse mode.
 					//In alternate mouse mode, right click still cancels building placement.
+					// TheSuperHackers @tweak Stubbjax 08/08/2025 Cancelling building placement no longer deselects the builder.
 					if (TheInGameUI->getPendingPlaceSourceObjectID() != INVALID_ID)
 					{
 						TheInGameUI->placeBuildAvailable(NULL, NULL);
@@ -1043,6 +1043,7 @@ GameMessageDisposition SelectionTranslator::translateGameMessage(const GameMessa
 					}
 					else if (!TheGlobalData->m_useAlternateMouse)
 					{
+						//No GUI command mode, so deselect everyone if we're in regular mouse mode.
 						deselectAll();
 					}
 				}