fix(tfserver): pass the friendly damage setting to the server (#5186)

The default config defined damangeallies, but the start parameters read
damageallies, so the server was always started with an empty
-IsCanFriendDamage= value. Rename the variable so the setting reaches
the server.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Daniel Gibbs <me@danielgibbs.co.uk>

lgsm/config-default/config-lgsm/tfserver/_default.cfg

@@ -19,7 +19,7 @@ allowsensitivewords="true"
 altsavedirectoryname="${defaultmap}"
 anticheat="true"
 damageself="true"
-damangeallies="true"
+damageallies="true"
 gamemode="0" # 0 = PvP; 1 = PvE
 greenhand="true"
 maxplayers="40"