feat: implement back button for banner

This button is intended to bring the user all the way back to the specified dashboard. Another could be created to exit the form, but I don't think that's needed for now.

Cargo.toml

@@ -23,11 +23,12 @@ uuid = { version = "1.17.0", features = ["serde", "v4", "js"] }
 leptos_oidc = "0.9.0"
 base64 = "0.22.1"
 chrono = "0.4.42"
-regex = "1.11.2"
 leptos_animate = "0.1.9"
 
 macros = { path = "./macros" }
 traits = { path = "./traits" }
+icondata = { version = "0.7.0", features = ["font-awesome"] }
+leptos_icons = "0.7.1"
 
 [features]
 default = ["ssr"]