Improve emoji sorting

[filipsobol]

📝 Provide detailed reproduction steps (if any)

1. Go to the Emoji docs.
2. Type :smiling eyes

✔️ Expected result

Emojis containing smiling eyes should be shown first, because they are direct matches to the search query.

Example:

grinning face with smiling eyes
                   ^^^^^^^^^^^^

❌ Actual result

The emoji smiling cat with heart-eyes is shown first, despite not being a direct match.

smiling cat with heart-eyes
^^^^^^^                ^^^^

📃 Other details

[gorzelinski]

In some cases (like "ok" or "sun"), proposed emojis are intuitive. In others, the first results are a little unintuitive (compared to other products).