Style datatable cursor

hamstertools/app.tcss

@@ -0,0 +1,19 @@
+Screen {
+	layout: vertical;
+}
+
+DataTable {
+	height: 90%;
+}
+
+DataTable .datatable--cursor {
+	background: grey;
+}
+
+DataTable:focus .datatable--cursor {
+	background: orange;
+}
+
+#filter {
+	display: none;
+}