Mitigation of issues found in Trust Security's audit

[spengrah]

• [x] TRST-H-1
• [x] TRST-M-1
• [x] TRST-M-2
• [x] TRST-M-3
• [x] TRST-M-4
• [x] TRST-M-7
• [x] TRST-L-1
• [x] TRST-L-2
• [x] TRST-L-3
• [x] TRST-L-4
• [x] TRST-L-5
• [x] Other recommendations
  • [x] Documentation changes
  • [x] Cleaner cod
  • [x] Emit events without state change
  • [x] Improving display of information

🚨 IMPORTANT 🚨

• [x] squash commits on merge