chore(l1): improved snapync logs

[fedacking]

Motivation

Snapsync logs had a series of issues:

• The storage leaves counter was showing the the storage accounts that were inserted.
• The initially accounts with storage, healed account log is not meaningful for users, only for developers.
• The logs included ascii color codes that didn't work due to tracing subscriber 0.3.20

Description

• Added log of storage_leaves_inserted/storage_leaves_downloaded %
• Removed logs of initially accounts with storage, healed account
• Removed Peers and Database unused ascii color code
• Removed unused storage_tries_state_roots_computed

Contributes to issue #4950

[github-actions]

Lines of code report

Total lines added: 15
Total lines removed: 21
Total lines changed: 36

Detailed view

+----------------------------------------------+-------+------+
| File                                         | Lines | Diff |
+----------------------------------------------+-------+------+
| ethrex/crates/networking/p2p/metrics.rs      | 593   | +4   |
+----------------------------------------------+-------+------+
| ethrex/crates/networking/p2p/network.rs      | 367   | +4   |
+----------------------------------------------+-------+------+
| ethrex/crates/networking/p2p/peer_handler.rs | 1759  | +7   |
+----------------------------------------------+-------+------+
| ethrex/crates/networking/p2p/sync.rs         | 1335  | -21  |
+----------------------------------------------+-------+------+