Replace IndexedDB boilerplate with rexie, fix warnings, use use_resource for storage loading

Co-authored-by: gfauredev <19304085+gfauredev@users.noreply.github.com>

Author: Copilot

Cargo.lock

@@ -18,17 +18,14 @@ log = "0.4"
 web-sys = { version = "0.3", features = [
     "Window", "Storage", "Navigator",
     "ServiceWorkerContainer", "ServiceWorkerRegistration",
-    "IdbFactory", "IdbDatabase", "IdbOpenDbRequest", "IdbRequest",
-    "IdbTransaction", "IdbTransactionMode", "IdbObjectStore",
-    "IdbObjectStoreParameters", "DomStringList",
     "Request", "RequestInit", "Response",
 ] }
 wasm-bindgen = "0.2"
 wasm-bindgen-futures = "0.4"
 js-sys = "0.3"
 serde-wasm-bindgen = "0.6"
-futures-channel = "0.3"
 gloo-timers = "0.3"
+rexie = "0.6"
 
 [[bin]]
 name = "log-workout"

Cargo.toml

@@ -1,6 +1,7 @@
 use dioxus::prelude::*;
 use crate::models::Exercise;
 
+#[cfg(target_arch = "wasm32")]
 const EXERCISES_JSON_URL: &str = "https://raw.githubusercontent.com/yuhonas/free-exercise-db/main/dist/exercises.json";
 
 /// Provide the exercises signal in the Dioxus context.
@@ -18,6 +19,7 @@ pub fn use_exercises() -> Signal<Vec<Exercise>> {
     use_context::<Signal<Vec<Exercise>>>()
 }
 
+#[allow(unused_mut, unused_variables)]
 async fn load_exercises(mut sig: Signal<Vec<Exercise>>) {
     // 1. Try IndexedDB
     #[cfg(target_arch = "wasm32")]