Move dioxus-specifc code into dioxus-tui crate and rename core crate to Rink

packages/dioxus-tui/src/widgets/mod.rs

@@ -0,0 +1,22 @@
+mod button;
+mod checkbox;
+mod input;
+mod number;
+mod password;
+mod slider;
+mod textbox;
+
+use dioxus_core::{RenderReturn, Scope};
+use dioxus_native_core::NodeId;
+pub use input::*;
+
+use crate::DioxusElementToNodeId;
+
+pub(crate) fn get_root_id<T>(cx: Scope<T>) -> Option<NodeId> {
+    if let RenderReturn::Ready(sync) = cx.root_node() {
+        let mapping: DioxusElementToNodeId = cx.consume_context()?;
+        mapping.get_node_id(sync.root_ids.get(0)?)
+    } else {
+        None
+    }
+}