Implement all TODOs in code

[MickaelOnTheWave]

Here are the different categories of TODOs that have been identified :

• [x] ToolsLib : Create a lib for usable tools (CommandLineManager for example), and make it usable in another project.
• [ ] Database improvements : Remove existing duplications and create necessary abstractions
• [x] New features : Small quality of life improvements
• [ ] Data optimization : Remove duplicated code/data