fix(@desktop): add missing visual identity elements

[osmaczko]

What does the PR do

• covered feat(@desktop): use emoji hash and identicon ring #5020 findings.
• make get(Emoji/Color)Hash global utility
  Removed instances of VisualIdentityService as it was stateless.
  Removed (emoji/color)Hash models as they were reduntant, hashes are
  obtained only from global utility now.

Screenshot of functionality

[status-im-auto]

Jenkins Builds

❔	Commit	#️⃣	Finished (UTC)	Duration	Platform	Result
✔️	80b2436	#1	2022-03-16 21:35:20	~11 min	linux	📦tgz
✔️	80b2436	#1	2022-03-16 21:44:07	~20 min	macos	📦dmg
✔️	80b2436	#1	2022-03-16 21:46:03	~21 min	windows	📦exe
✔️	bf6fc74	#2	2022-03-17 10:38:42	~7 min	macos	📦dmg
✔️	bf6fc74	#2	2022-03-17 10:41:07	~9 min	linux	📦tgz
✔️	bf6fc74	#2	2022-03-17 10:49:59	~18 min	windows	📦exe

[jrainville]

Looks good. Clean changes.

FYI, I have two PRs that might conflict with this:

• This fix to the chat_section module: #5063
  • I think my PR now is useless, because you just removed all the code from the chat_section, but can you confirm if in your PR we can join a public chat without crash? If so, I'll delete my PR.
• This change to the contact setting: #5053
  • I don't think you touched the Contact setting yourself, so it should be good, but posting here just in case.

[osmaczko]

• I think my PR now is useless, because you just removed all the code from the chat_section, but can you confirm if in your PR we can join a public chat without crash? If so, I'll delete my PR.

Yes, indeed, didn't know it crashes... You can delete it, as I removed visual identity service instances altogether.

• I don't think you touched the Contact setting yourself, so it should be good, but posting here just in case.

I intentionally omitted the Contact settings, cause you mentioned in the previous PR it would conflict.