[Bug] Duplicate emotes appearing in Backpack (Android & iOS)

### Platform
Android, iOS

### App Version
Not specified (current TestFlight/production build as of 2026-07-17)

### Device Information
Not specified

### Issue Description
Some emotes appear duplicated (shown twice as separate tiles) in the Backpack Emotes grid. This was reproduced across multiple login methods and accounts:
- Guest accounts
- Email OTP
- MetaMask
- Google accounts

At least one duplicated emote appears for every account tested, regardless of login method. Confirmed on both Android and iOS.

Sample wallets tested:
- `0xc9c29ab98e6bc42015985165a11153f564e9f8c2`
- `0xc3af1190dfc0cb4184c114baf5147512a6b8d257`

### Expected Behavior
Each owned/equipped emote should appear only once in the Backpack Emotes grid, matching the number of unique emotes actually owned.

### Screenshots / Media
Screenshots attached showing duplicate tiles for the same emote (e.g. "Feed the Pigeons" duck emote, a "NEW" pointing/dance emote, a meditation emote, and a bottle-drink emote — each appearing as two identical adjacent tiles in the grid).

### Steps to Reproduce
1. Log in with any account type (Guest - _claim pidgeon emote in GP_ , Email OTP, MetaMask, or Google)
2. Open Backpack → Emotes tab
3. Scroll through the emote grid
4. Observe that at least one emote appears as two separate, identical tiles

### Occurrence
100% (reproduced on every account/login method tested)

Requested by ludmila.fantaniella via Slack

### Evidence: