Update dependencies, remove unused ones

elm/elm.json

@@ -6,23 +6,21 @@
     "elm-version": "0.19.1",
     "dependencies": {
         "direct": {
-            "elm/browser": "1.0.2",
-            "elm/core": "1.0.4",
-            "elm/html": "1.0.0"
+            "elm/core": "1.0.3",
+            "elm/json": "1.1.3"
         },
-        "indirect": {
-            "elm/json": "1.1.3",
-            "elm/time": "1.0.0",
-            "elm/url": "1.0.0",
-            "elm/virtual-dom": "1.0.2"
-        }
+        "indirect": {}
     },
     "test-dependencies": {
         "direct": {
-            "elm-explorations/test": "1.2.2"
+            "elm-explorations/test": "2.2.0"
         },
         "indirect": {
-            "elm/random": "1.0.0"
+            "elm/bytes": "1.0.8",
+            "elm/html": "1.0.0",
+            "elm/random": "1.0.0",
+            "elm/time": "1.0.0",
+            "elm/virtual-dom": "1.0.3"
         }
     }
 }