Added trivial web ui.

src/webui/views.rs

@@ -0,0 +1,11 @@
+use std::collections::HashMap;
+use actix_web::{Responder, web};
+use crate::webui::MiniJinjaRenderer;
+
+#[actix_web::get("/")]
+pub async fn index(
+    tmpl_env: MiniJinjaRenderer,
+    query: web::Query<HashMap<String, String>>,
+) -> actix_web::Result<impl Responder> {
+    tmpl_env.render("index.html", ())
+}