refactor : replace meshColider to boxColider

Assets/Level/Prefabs/World/Floors/Floor_30x10.prefab

@@ -13,7 +13,7 @@ GameObject:
   - component: {fileID: 1219615112375294122}
   - component: {fileID: 4004555845952347350}
   - component: {fileID: 6819672092795195988}
-  - component: {fileID: 8132826256279792130}
+  - component: {fileID: 567583672662238815}
   m_Layer: 0
   m_Name: Floor_30x10
   m_TagString: Untagged
@@ -334,8 +334,8 @@ MeshFilter:
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 444571239927696885}
   m_Mesh: {fileID: 0}
---- !u!64 &8132826256279792130
-MeshCollider:
+--- !u!65 &567583672662238815
+BoxCollider:
   m_ObjectHideFlags: 0
   m_CorrespondingSourceObject: {fileID: 0}
   m_PrefabInstance: {fileID: 0}
@@ -352,7 +352,6 @@ MeshCollider:
   m_IsTrigger: 0
   m_ProvidesContacts: 0
   m_Enabled: 1
-  serializedVersion: 5
-  m_Convex: 0
-  m_CookingOptions: 30
-  m_Mesh: {fileID: 0}
+  serializedVersion: 3
+  m_Size: {x: 30, y: 0.1, z: 10}
+  m_Center: {x: 0, y: 0, z: 0}

Assets/Level/Prefabs/World/Floors/Floor_30x30.prefab

@@ -13,7 +13,7 @@ GameObject:
   - component: {fileID: 4244181836380195824}
   - component: {fileID: 739656780000968248}
   - component: {fileID: 2532086036973149578}
-  - component: {fileID: 5916146747507167002}
+  - component: {fileID: 6776827439233849894}
   m_Layer: 0
   m_Name: Floor_30x30
   m_TagString: Untagged
@@ -334,8 +334,8 @@ MeshFilter:
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 3738058268798435914}
   m_Mesh: {fileID: 0}
---- !u!64 &5916146747507167002
-MeshCollider:
+--- !u!65 &6776827439233849894
+BoxCollider:
   m_ObjectHideFlags: 0
   m_CorrespondingSourceObject: {fileID: 0}
   m_PrefabInstance: {fileID: 0}
@@ -352,7 +352,6 @@ MeshCollider:
   m_IsTrigger: 0
   m_ProvidesContacts: 0
   m_Enabled: 1
-  serializedVersion: 5
-  m_Convex: 0
-  m_CookingOptions: 30
-  m_Mesh: {fileID: 0}
+  serializedVersion: 3
+  m_Size: {x: 30, y: 0.1, z: 30}
+  m_Center: {x: 0, y: 0, z: 0}