update ui and some small changes

src/labled_switch/mod.rs

@@ -0,0 +1,23 @@
+use gtk::{prelude::*, Box, Label, Switch};
+
+pub fn build(text: &str) -> (Box, Switch, Label) {
+    let switch: Switch = Switch::builder()
+        .valign(gtk::Align::Start)
+        .halign(gtk::Align::Center)
+        .build();
+
+    let label: Label = Label::builder()
+    .valign(gtk::Align::End)
+    .halign(gtk::Align::BaselineCenter)
+    .label(text)
+    .build();
+
+    let container = Box::builder()
+        .orientation(gtk::Orientation::Horizontal)
+        .build();
+
+    container.append(&switch);
+    container.append(&label);
+
+    (container, switch, label)
+}