Some of emojis are not displayed properly as icons

Some of emojis are not displayed properly when used as a document or project icon.

**Steps to reproduce**

1. Edit a project in Tracker
2. Click Choose Icon
3. Select 1️⃣ icon as the project icon
4. Click Save button


**Actual behavior**

Project icon changes to ‘1’ displayed as text, not as emoji


**Expected behavior**

Project icon is displayed properly as an emoji

**Root cause**

Emojis are stored as numbers and we use `String.fromCodepoint` and `emoji.codePointAt(0)` to convert between string and number representation. But the sample emoji consists of three codepoints hence we don’t display it properly.

_{View in Huly UBERF-5971}