Anomaly fixes (#13558)

Closes https://github.com/space-wizards/space-station-14/issues/13545
Closes https://github.com/space-wizards/space-station-14/issues/13544
Closes https://github.com/space-wizards/space-station-14/issues/13543
Closes https://github.com/space-wizards/space-station-14/issues/13536

Content.Shared/CCVar/CCVars.cs

@@ -1135,6 +1135,16 @@ namespace Content.Shared.CCVar
         public static readonly CVarDef<bool> BiomassEasyMode =
             CVarDef.Create("biomass.easy_mode", true, CVar.SERVERONLY);
 
+        /*
+         * Anomaly
+         */
+
+        /// <summary>
+        ///     A scale factor applied to a grid's bounds when trying to find a spot to randomly generate an anomaly.
+        /// </summary>
+        public static readonly CVarDef<float> AnomalyGenerationGridBoundsScale =
+            CVarDef.Create("anomaly.generation_grid_bounds_scale", 0.6f, CVar.SERVERONLY);
+
         /*
          * VIEWPORT
          */