feat: 🎸 Update how we store tokens in indexed-db (#2223)

Added logic to make the list tokens stored in indexed DB more granular.
I get a hash of the query parameters that will get sent to the controller
and use that as the id for the token. This also means extra logic for when
a token is invalid as we will need to delete all tokens of the same
resource type.

addons/api/tests/unit/utils/hash-code-test.js

@@ -0,0 +1,36 @@
+import { hashCode } from 'api/utils/hash-code';
+import { module, test } from 'qunit';
+
+module('Unit | Utility | hash-code', function () {
+  test('it hashes', function (assert) {
+    const result = hashCode({ a: 1, b: 2 });
+    assert.ok(result);
+  });
+
+  test('it hashes to same result regardless of object order', function (assert) {
+    const first = hashCode({ a: 1, b: 2, c: 3 });
+    const second = hashCode({ b: 2, c: 3, a: 1 });
+    assert.strictEqual(first, second);
+  });
+
+  test('it hashes to different result if objects are different', function (assert) {
+    const first = hashCode({ a: 1, b: 2, c: 3 });
+    const second = hashCode({ a: '1', b: '2', c: '3' });
+    assert.notStrictEqual(first, second);
+  });
+
+  test('it hashes an empty object', function (assert) {
+    const result = hashCode({});
+    assert.ok(result);
+  });
+
+  test('it hashes null to 0', function (assert) {
+    const result = hashCode(null);
+    assert.strictEqual(result, 0);
+  });
+
+  test('it hashes undefined to 0', function (assert) {
+    const result = hashCode(undefined);
+    assert.strictEqual(result, 0);
+  });
+});