Tricount

[maximeroucher]

Goal of this PR : Adding the Tricount module, to handle grouped expenses

Description of the added features :

• Creating group
• Editing group
• Deleting group
• Adding a user in a group
• Self deleting from a group, only when balance is null
• Displaying stats of a group
  • users in the groups
  • expense of each user
  • total amount
  • amount to reimburse for each user
• Displaying cross group stats
  • amount to reimburse to other user
  • amount to be reimbursed
• Adding an expense for a group
• deleting an expense for a group
• Reimbursing a user in a group
• Making a cross group reimbursement to a user

Images (if the PR changes the front) :

Desktop	Mobile

Other information :

[codecov-commenter]

Codecov Report

Attention: 12 lines in your changes are missing coverage. Please review.

Comparison is base (075a746) 55.96% compared to head (5b47d82) 56.40%.
Report is 77 commits behind head on main.

Files	Patch %	Lines
lib/tools/providers/list_notifier.dart	0.00%	12 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #207      +/-   ##
==========================================
+ Coverage   55.96%   56.40%   +0.44%     
==========================================
  Files         166      160       -6     
  Lines        3581     3503      -78     
==========================================
- Hits         2004     1976      -28     
+ Misses       1577     1527      -50     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.