app: Add a component to delete a user

Also adds a way to hook to the bootstrap modals to show or hide them.

app/src/infra/mod.rs

@@ -1,3 +1,4 @@
 pub mod api;
 pub mod cookies;
 pub mod graphql;
+pub mod modal;

app/src/infra/modal.rs

@@ -0,0 +1,16 @@
+use wasm_bindgen::prelude::*;
+
+#[wasm_bindgen(module = "bootstrap")]
+extern "C" {
+    #[wasm_bindgen]
+    pub type Modal;
+
+    #[wasm_bindgen(constructor)]
+    pub fn new(e: web_sys::Element) -> Modal;
+
+    #[wasm_bindgen(method)]
+    pub fn show(this: &Modal);
+
+    #[wasm_bindgen(method)]
+    pub fn hide(this: &Modal);
+}