Set package name in package.json

Otherwise, `npm install` writes the directory name into
`package-lock.json`. In my case, this was still `radicle-interface`.

package-lock.json

@@ -5,6 +5,7 @@
   "requires": true,
   "packages": {
     "": {
+      "name": "radicle-explorer",
       "version": "1.0.0",
       "hasInstallScript": true,
       "dependencies": {

package.json

@@ -1,4 +1,6 @@
 {
+  "name": "radicle-explorer",
+  "private": true,
   "version": "1.0.0",
   "scripts": {
     "start": "vite",