Adjust copy on the welcome panel

[michalinacienciala]

As discussed in https://discord.com/channels/1079490158639976609/1306530286607273995/1306543315902005281 and shown in designs, we need comma between these words:

Also there's an obsolete everyone in this sentence: Tailored for Ledger Live everyone, it's fun and easy to use.. The designs don't have it.

### Tasks
- [ ] Add comma between "One dashboard, endless rewards"
- [ ] Remove `everyone` from `Tailored for Ledger Live everyone`
- [ ] Change button label from `Skip` to `Next`

[linear[bot]]

AENG-17 Adjust copy on the welcome panel