Fix exceptions when hovering over an item with a broken texture.

Content.Client/ClickMapManager.cs

@@ -69,7 +69,18 @@ namespace Content.Client
                 return false;
             }
 
-            var offset = rsiData.Offsets[state][(int) dir][frame];
+            if (!rsiData.Offsets.TryGetValue(state, out var stateDat) || stateDat.Length <= (int) dir)
+            {
+                return false;
+            }
+
+            var dirDat = stateDat[(int) dir];
+            if (dirDat.Length <= frame)
+            {
+                return false;
+            }
+
+            var offset = dirDat[frame];
             return SampleClickMap(rsiData.ClickMap, pos, rsi.Size, offset);
         }