Cosmetic: Multiple cosmetic changes

- Added missing space to 'if', 'for', 'while' and 'switch' when it's followed by '('
- Added missing space after a comma and remove space before comma (with some exceptions)
- Remove trailing spaces
- Convert tab to spaces

Note: Only affects files with extension "cpp" and "h" under /src/server

src/server/game/Entities/Pet/Pet.cpp

@@ -483,7 +483,7 @@ void Pet::Update(uint32 diff)
     if (m_loading)
         return;
 
-    switch(m_deathState)
+    switch (m_deathState)
     {
         case CORPSE:
         {