Added banner options, logo and image upload with validation to appearance settings. Fixes #15

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Cargo.toml

@@ -10,18 +10,19 @@ crate-type = ["cdylib", "rlib"]
 actix-files = { version = "0.6.2", optional = true }
 actix-web = { version = "4.5.1", optional = true, features = ["macros"] }
 actix-session = { version = "0.10.0", optional = true, features = ["cookie-session"] }
-actix-multipart = { version = "0.7.2", optional = true }
 console_error_panic_hook = "0.1.7"
+# Used by the multipart codec of server_fn; needed directly to check a request before it gets there
+multer = { version = "3", optional = true }
 cfg-if = "1"
-leptos = { version = "0.8.22" }
+leptos = { version = "0.8.22", features = ["multipart"] }
 leptos_meta = { version = "0.8" }
 leptos_actix = { version = "0.8", optional = true }
-server_fn = { version = "0.8" }
+server_fn = { version = "0.8", features = ["multipart"] }
 leptos_router = { version = "0.8" }
 serde = { version = "1", features = ["derive"] }
 serde_json = "1.0.117"
 wasm-bindgen = "=0.2.129"
-web-sys = { version = "0.3.69", features = ["Navigator"] }
+web-sys = { version = "0.3.69", features = ["Navigator", "Blob", "DomRect", "Element", "File", "FileList", "FormData", "HtmlInputElement", "MouseEvent", "Url"] }
 lazy_static = "1.4.0"
 chrono = { version = "0.4.38", features = ["serde"]}
 sqlx = { version = "0.8.0", optional = true, features = ["runtime-tokio-rustls", "postgres", "chrono", "rust_decimal", "uuid"] }
@@ -53,7 +54,7 @@ ssr = [
   "dep:actix-web",
   "dep:leptos_actix",
   "dep:actix-session",
-  "dep:actix-multipart",
+  "dep:multer",
   "dep:sqlx",
   "dep:lettre",
   "dep:charts-rs",