Add Netlify _redirects file

This ensures the URLs can be navigated to directly.

Tested in #146

---

Commit:  ember-learn/super-rentals-tutorial@ba546ad
Script:  https://github.com/ember-learn/super-rentals-tutorial/blob/ba546ade32f43c118706d878a8b8250191ccf4bb/.github/workflows/build.yml
Logs:    https://github.com/ember-learn/super-rentals-tutorial/commit/ba546ade32f43c118706d878a8b8250191ccf4bb/checks

public/_redirects

@@ -0,0 +1 @@
+/* /index.html 200

yarn.lock

@@ -3354,9 +3354,9 @@ [email protected]:
   integrity sha512-zauLjrfCG+xvoyaqLoV8bLVXXNGC4JqlxFCutSDWA6fJrTo2ZuvLYTqZ7aHBLZSMOopbzwv8f+wZcVzfVTI2Dg==
 
 cacache@^12.0.2:
-  version "12.0.3"
-  resolved "https://registry.yarnpkg.com/cacache/-/cacache-12.0.3.tgz#be99abba4e1bf5df461cd5a2c1071fc432573390"
-  integrity sha512-kqdmfXEGFepesTuROHMs3MpFLWrPkSSpRqOw80RCflZXy/khxaArvFrQ7uJxSUduzAufc6G0g1VUCOZXxWavPw==
+  version "12.0.4"
+  resolved "https://registry.yarnpkg.com/cacache/-/cacache-12.0.4.tgz#668bcbd105aeb5f1d92fe25570ec9525c8faa40c"
+  integrity sha512-a0tMB40oefvuInr4Cwb3GerbL9xTj1D5yg0T5xrjGCGyfvbxseIXX7BAO/u/hIXdafzOI5JC3wDwHyf24buOAQ==
   dependencies:
     bluebird "^3.5.5"
     chownr "^1.1.1"
@@ -4289,9 +4289,9 @@ [email protected]:
   integrity sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0=
 
 electron-to-chromium@^1.3.380, electron-to-chromium@^1.3.47:
-  version "1.3.381"
-  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.381.tgz#952678ff91a5f36175a3832358a6dd2de3bf62b7"
-  integrity sha512-JQBpVUr83l+QOqPQpj2SbOve1bBE4ACpmwcMNqWlZmfib7jccxJ02qFNichDpZ5LS4Zsqc985NIPKegBIZjK8Q==
+  version "1.3.382"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.382.tgz#cad02da655c33f7a3d6ca7525bd35c17e90f3a8f"
+  integrity sha512-gJfxOcgnBlXhfnUUObsq3n3ReU8CT6S8je97HndYRkKsNZMJJ38zO/pI5aqO7L3Myfq+E3pqPyKK/ynyLEQfBA==
 
 elliptic@^6.0.0:
   version "6.5.2"