Update emojis.ts

Before the fix emoji could be found only by a subsctring from a string start. 

For example, we have two emojis
1) foo
2) bar_foo

When you perform a search by keyword 'foo' only the first one will be found.

Now, both will be found.

app/lib/methods/emojis.ts

@@ -51,7 +51,7 @@ export const searchEmojis = async (keyword: string): Promise<IEmoji[]> => {
 	const likeString = sanitizeLikeString(keyword);
 	const whereClause = [];
 	if (likeString) {
-		whereClause.push(Q.where('name', Q.like(`${likeString}%`)));
+		whereClause.push(Q.where('name', Q.like(`%${likeString}%`)));
 	}
 	const db = database.active;
 	const customEmojisCollection = await db