Add tag sorting

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

src/database/meme.ts

@@ -28,6 +28,7 @@ class Meme extends Realm.Object<Meme> {
   description?: string;
   isFavorite!: boolean;
   tags!: Realm.List<Tag>;
+  tagsLength!: number;
   dateCreated!: Date;
   dateModified!: Date;
   dateUsed?: Date;
@@ -45,6 +46,7 @@ class Meme extends Realm.Object<Meme> {
       description: 'string?',
       isFavorite: { type: 'bool', indexed: true, default: false },
       tags: 'Tag[]',
+      tagsLength: { type: 'int', default: 0 },
       dateCreated: { type: 'date', default: new Date() },
       dateModified: { type: 'date', default: new Date() },
       dateUsed: 'date?',