bump alpha version

package.json

@@ -1,6 +1,6 @@
 {
   "name": "svelte",
-  "version": "3.0.0-alpha6",
+  "version": "3.0.0-alpha7",
   "description": "The magical disappearing UI framework",
   "module": "index.mjs",
   "main": "index.js",

site/package-lock.json

@@ -4220,9 +4220,9 @@
       }
     },
     "svelte": {
-      "version": "3.0.0-alpha6",
-      "resolved": "https://registry.npmjs.org/svelte/-/svelte-3.0.0-alpha6.tgz",
-      "integrity": "sha512-UBYZ1RMyhWVu7XEXfDtDQr9q2XWGuh61Wsy0Rln3BlQwuAv5du3j7bqUOygxVPmQYEWNL6dMBUFjXetG1Ylc9A==",
+      "version": "3.0.0-alpha7",
+      "resolved": "https://registry.npmjs.org/svelte/-/svelte-3.0.0-alpha7.tgz",
+      "integrity": "sha512-AIEeZlVKqw7rRss0+1YDJlPJW7uQpHMB3ys730D1AuuPQkZVFoW+KuCi+1HiE9D5AUr1pIAUxc3vD66RYGqoyw==",
       "dev": true
     },
     "terser": {

site/package.json

@@ -51,6 +51,6 @@
     "rollup-plugin-svelte": "^4.2.1",
     "rollup-plugin-terser": "^1.0.1",
     "sapper": "^0.25.0-alpha1",
-    "svelte": "^3.0.0-alpha6"
+    "svelte": "^3.0.0-alpha7"
   }
 }