Increase Trait Limit From 5 To 10 (Simple-Station#720)

# Description

Given the big influx of new traits, a maximum of 5 traits can feel
constricting, as often you'll have unspent points but not enough trait
slots to buy more traits. This doubles the default trait limit from 5 to
10 to increase player choice and allow more unique trait setups.

Since the base trait points have not been increased, players will still
need to take negative traits if they want to have more positive traits
than before.

## Changelog

:cl: Skubman
- tweak: The maximum trait limit has increased from 5 traits to 10
traits.

Content.Shared/CCVar/CCVars.cs

@@ -361,7 +361,7 @@ public static readonly CVarDef<bool>
         ///     How many traits a character can have at most.
         /// </summary>
         public static readonly CVarDef<int> GameTraitsMax =
-            CVarDef.Create("game.traits_max", 5, CVar.REPLICATED);
+            CVarDef.Create("game.traits_max", 10, CVar.REPLICATED);
 
         /// <summary>
         ///     How many points a character should start with.