Better frontend assets handling and move the react app to /account/ (#1324)

This makes the Vite assets handling better, namely:

 - make it possible to include any vite assets in the templates
 - include the right `<link rel="preload">` tags for assets
 - include Subresource Integrity hashes
 - pre-compress assets and remove on-the-fly compression by the Rust server
 - build the CSS used by templates through Vite

It also moves the React app from /app/ to /account/, and remove some of the old SSR account screens.

crates/config/src/sections/http.rs

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(deprecated)]
+
 use std::{borrow::Cow, io::Cursor, ops::Deref};
 
 use anyhow::bail;
@@ -43,21 +45,11 @@ fn http_address_example_4() -> &'static str {
     "0.0.0.0:8080"
 }
 
-#[cfg(not(feature = "docker"))]
-fn http_listener_spa_manifest_default() -> Utf8PathBuf {
-    "./frontend/dist/manifest.json".into()
-}
-
 #[cfg(not(feature = "docker"))]
 fn http_listener_assets_path_default() -> Utf8PathBuf {
     "./frontend/dist/".into()
 }
 
-#[cfg(feature = "docker")]
-fn http_listener_spa_manifest_default() -> Utf8PathBuf {
-    "/usr/local/share/mas-cli/manifest.json".into()
-}
-
 #[cfg(feature = "docker")]
 fn http_listener_assets_path_default() -> Utf8PathBuf {
     "/usr/local/share/mas-cli/assets/".into()
@@ -285,12 +277,10 @@ pub enum Resource {
     ConnectionInfo,
 
     /// Mount the single page app
-    Spa {
-        /// Path to the vite manifest.json
-        #[serde(default = "http_listener_spa_manifest_default")]
-        #[schemars(with = "String")]
-        manifest: Utf8PathBuf,
-    },
+    ///
+    /// This is deprecated and will be removed in a future release.
+    #[deprecated = "This resource is deprecated and will be removed in a future release"]
+    Spa,
 }
 
 /// Configuration of a listener
@@ -346,9 +336,6 @@ impl Default for HttpConfig {
                         Resource::Assets {
                             path: http_listener_assets_path_default(),
                         },
-                        Resource::Spa {
-                            manifest: http_listener_spa_manifest_default(),
-                        },
                     ],
                     tls: None,
                     proxy_protocol: false,