Work on implementing search filter in app [WIP]

flutter/lib/types/immediate_future.dart

@@ -1,18 +1,26 @@
 // This class is useful togther with FutureBuilder
 // Unfortunately Future.value(x) in FutureBuilder always results in one frame were snapshot.connectionState is waiting
-// Whit way we can set the ImmediateFuture.value directly and circumvent that.
+// This way we can set the ImmediateFuture.value directly and circumvent that.
 
 class ImmediateFuture<T> {
   final Future<T> future;
   final T? value;
 
+  T? _futureValue = null;
+
   ImmediateFuture(this.future, this.value);
 
   ImmediateFuture.ofFuture(Future<T> v)
       : future = v,
-        value = null;
+        value = null {
+    future.then((v) => _futureValue = v);
+  }
 
   ImmediateFuture.ofValue(T v)
       : future = Future.value(v),
         value = v;
+
+  T? get() {
+    return value ?? _futureValue;
+  }
 }