refactor(network): refactor peer manager and redefine the min cons

[b00f]

Description

This PR refactors the peer manager.
It keeps a list of all connected peers and tries to reconnect to them if the number of connected peers falls below the minimum connection threshold.

[codecov]

Codecov Report

Attention: Patch coverage is 81.69014% with 13 lines in your changes are missing coverage. Please review.

Project coverage is 76.24%. Comparing base (dd77837) to head (839e69e).
Report is 2 commits behind head on main.

❗ Current head 839e69e differs from pull request most recent head e266d0f. Consider uploading reports for the commit e266d0f to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1259      +/-   ##
==========================================
+ Coverage   76.12%   76.24%   +0.11%     
==========================================
  Files         203      205       +2     
  Lines       10637    10661      +24     
==========================================
+ Hits         8097     8128      +31     
+ Misses       2149     2147       -2     
+ Partials      391      386       -5