remove artifacts from scenario

Scenarios/Demos/SocialDistancing/SocialDistancingBottleneck/scenarios/bottleneck_2m.scenario

@@ -197,8 +197,8 @@
         "bounds" : {
           "x" : 0.0,
           "y" : 0.0,
-          "width" : 35.0,
-          "height" : 25.0
+          "width" : 65.0,
+          "height" : 21.0
         },
         "boundingBoxWidth" : 0.5,
         "bounded" : true,
@@ -207,18 +207,18 @@
       "obstacles" : [ {
         "shape" : {
           "x" : 3.0,
-          "y" : 13.0,
+          "y" : 11.0,
           "width" : 5.0,
-          "height" : 12.0,
+          "height" : 9.5,
           "type" : "RECTANGLE"
         },
         "id" : 1
       }, {
         "shape" : {
           "x" : 3.0,
-          "y" : -0.0,
+          "y" : 0.5,
           "width" : 5.0,
-          "height" : 12.0,
+          "height" : 9.5,
           "type" : "RECTANGLE"
         },
         "id" : 2
@@ -230,7 +230,7 @@
         "absorbing" : true,
         "shape" : {
           "x" : 1.0,
-          "y" : 11.5,
+          "y" : 9.5,
           "width" : 1.4,
           "height" : 2.0,
           "type" : "RECTANGLE"
@@ -248,15 +248,15 @@
       "sources" : [ {
         "id" : 3,
         "shape" : {
-          "x" : 14.0,
-          "y" : 2.5,
+          "x" : 20.0,
+          "y" : 0.5,
           "width" : 20.0,
           "height" : 20.0,
           "type" : "RECTANGLE"
         },
         "interSpawnTimeDistribution" : "org.vadere.state.scenario.ConstantDistribution",
         "distributionParameters" : [ 1.0 ],
-        "spawnNumber" : 70,
+        "spawnNumber" : 100,
         "maxSpawnNumberTotal" : -1,
         "startTime" : 0.0,
         "endTime" : 0.0,