Spread resources fix to test case editor

src/lib/components/test_cases/TestCaseEdit.svelte

@@ -209,12 +209,25 @@
         ...adultes.map((adulte, index) => [
           `Adulte ${index + 1}`,
           {
+            // set all resources for 3 years
             // salaire_de_base: { [year]: adulte.salaire_de_base },
             salaire_de_base: Object.fromEntries(
-              [...new Array(12)].map((_, index) => [
+              [...new Array(12)]
+                .map((_, index) => [
+                  [
+                    `${year - 2}-${(index + 1).toString().padStart(2, "0")}`,
+                    adulte.salaire_de_base / 12,
+                  ],
+                  [
+                    `${year - 1}-${(index + 1).toString().padStart(2, "0")}`,
+                    adulte.salaire_de_base / 12,
+                  ],
+                  [
                     `${year}-${(index + 1).toString().padStart(2, "0")}`,
                     adulte.salaire_de_base / 12,
-              ]),
+                  ],
+                ])
+                .flat(1),
             ),
           },
         ]),