blockchainRegistry.getAllTokens sometimes doesn't return tokens

[josheleonard]

Description

Seems like calling this function early in the wallet page startup process can sometimes return empty results

Steps to Reproduce

1. filter the deposit tokens list to Solana mainnet
2. Close brave
3. unlock wallet directly to deposit screen
4. sometimes, the list only loads only SOL and eventually tokens from the user's list.

Actual result:

deposit.screen.tokens.bug.mp4

Expected result:

All assets should always be loaded (native asset, user tokens, 'known' tokens)

Reproduces how often:

Intermittent issue

Brave version (brave://version info)

Version/Channel Information:

• Can you reproduce this issue with the current release?
• Can you reproduce this issue with the beta channel?
• Can you reproduce this issue with the nightly channel?

Other Additional Information:

• Does the issue resolve itself when disabling Brave Shields?
• Does the issue resolve itself when disabling Brave Rewards?
• Is the issue reproducible on the latest version of Chrome?

Miscellaneous Information:

[srirambv]

Verification passed on

Brave	1.58.100 Chromium: 116.0.5845.114 (Official Build) beta (64-bit)
Revision	a8c0058265009a1858c4502b9ba413671fbb61e1
OS	Windows 11 Version 22H2 (Build 22621.2215)

• Verified steps from brave/brave-core#19475
• Verified all tokens from Solana Mainnet are shown when browser is restarted directly into deposit screen

31669.mp4