feat: add fertilizer pump test functionality with web integration and HAL support

Software/MainBoard/rust/src_webpack/src/main.ts

@@ -304,6 +304,12 @@ export class Controller {
         })
     }
 
+    testFertilizerPump() {
+        fetch(PUBLIC_URL + "/fertilizerpumptest", {
+            method: "POST"
+        })
+    }
+
     testPlant(plantId: number) {
         let counter = 0
         let limit = 30