OpenGraph improvements (#17)

* Allow setting tag('og:title', ...)

* og:type overriding

* Add type()

tests/Pest/ManagerTest.php

@@ -127,3 +127,22 @@ test('canonical url can be changed', function () {
         ->toContain('<meta property="og:url" content="http://foo.com/bar" />')
         ->toContain('<link rel="canonical" href="http://foo.com/bar" />');
 });
+
+test('og:title can be overridden using a tag', function () {
+    seo()->title('foo')
+        ->tag('og:title', 'bar');
+
+    expect(meta())
+        ->toContain('<title>foo</title>')
+        ->toContain('<meta property="og:title" content="bar" />');
+});
+
+test('type can be overridden using the type method', function () {
+    expect(meta())->toContain('<meta property="og:type" content="website" />'); // default
+
+    seo()->type('foo');
+
+    expect(meta())
+        ->toContain('<meta property="og:type" content="foo" />') // overridden
+        ->not()->toContain('website');
+});