Client: Improved form number parser

client/src/utils/parsing.ts

@@ -6,5 +6,15 @@ export function numberFormatter(value: number | undefined) {
 
 // Number parser that supports both comma and dot as decimal separator
 export function numberParser(value: string | undefined) {
-    return Number(value?.replace(",", ".") ?? 0);
+    // Convert comma to dot
+    const decimalSeparator = (1.1).toLocaleString().charAt(1);
+    if (decimalSeparator === ",") {
+        value = value?.replace(",", ".");
+    }
+
+    // Remove all non-digit characters
+    value = value?.replace(/[^\d.-]/g, "");
+
+    // Parse as float
+    return parseFloat(value || "0");
 }