feat(finances): Add membership fees to budget

Introduce a new "Membership Fees" category in the financial data, with an initial amount of 50 EUR. This update is crucial for providing a more comprehensive view of our income streams alongside our expenditures, ensuring our budget reflects all financial aspects accurately. This addition aids in better financial planning and resource allocation for future projects and needs.

data/finances.json

@@ -27,6 +27,9 @@
             }
         },
         "6": {
+            "Membership Fees": {
+                "EUR": 50
+            },
             "Server Costs": {
                 "EUR": -21.94
             }