chore: Refine the UI (#102)

* update deps

* update window options

* linux title bar

* fix build

* .

* fix build

* rounded corners on linux

* .

* .

* fix i18n key

* fix change subject modal

* .

* update new account

* .

* update relay modal

* .

* fix i18n keys

---------

Co-authored-by: reya <reya@macbook.local>

crates/ui/src/styled.rs

@@ -18,6 +18,11 @@ pub fn v_flex() -> Div {
     div().v_flex()
 }
 
+/// Returns a `Div` as divider.
+pub fn divider(cx: &App) -> Div {
+    div().my_2().w_full().h_px().bg(cx.theme().border)
+}
+
 macro_rules! font_weight {
     ($fn:ident, $const:ident) => {
         /// [docs](https://tailwindcss.com/docs/font-weight)