Add meme view & sharing

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

src/utilities/tag.ts

@@ -0,0 +1,16 @@
+import { Realm } from '@realm/react';
+import { Tag } from '../database';
+
+const deleteTag = (realm: Realm, tag: Tag) => {
+  realm.write(() => {
+    for (const meme of tag.memes) {
+      meme.dateModified = new Date();
+      meme.tags.slice(meme.tags.indexOf(tag), 1);
+      meme.tagsLength -= 1;
+    }
+
+    realm.delete(tag);
+  });
+};
+
+export { deleteTag };