Fix postman tests

Author: Planlos5000

server/api.postman_collection.json

@@ -1027,15 +1027,15 @@
 									"",
 									"",
 									"pm.test(\"Check that first entry of array includes column templates\", () => {",
-									"    pm.expect(res[0].ColumnTemplates).to.exist;",
+									"    pm.expect(res[0].columns).to.exist;",
 									"})",
 									"",
 									"pm.test(\"Check that column template is not null\", () => {",
-									"    pm.expect(res[0].ColumnTemplates).to.not.be.null;",
+									"    pm.expect(res[0].columns).to.not.be.null;",
 									"})",
 									"",
 									"pm.test(\"Check that column template is an array\", () => {",
-									"    pm.expect(res[0].ColumnTemplates).to.be.an('array');",
+									"    pm.expect(res[0].columns).to.be.an('array');",
 									"})"
 								],
 								"type": "text/javascript",