rename frontend to web and update contributing guide (#2509)

* rename frontend to web and update contributing guide

* rename this time

* fix build

* restructure rust code

* update documentation

* update descriptions

* Update CONTRIBUTING.md

Co-authored-by: J H <2364004+Blu-J@users.noreply.github.com>

---------

Co-authored-by: Aiden McClelland <me@drbonez.dev>
Co-authored-by: Aiden McClelland <3732071+dr-bonez@users.noreply.github.com>
Co-authored-by: J H <2364004+Blu-J@users.noreply.github.com>

core/models/src/id/image.rs

@@ -0,0 +1,38 @@
+use std::fmt::Debug;
+use std::str::FromStr;
+
+use serde::{Deserialize, Deserializer, Serialize};
+
+use crate::{Id, InvalidId, PackageId, Version};
+
+#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize)]
+pub struct ImageId(Id);
+impl std::fmt::Display for ImageId {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "{}", &self.0)
+    }
+}
+impl ImageId {
+    pub fn for_package(&self, pkg_id: &PackageId, pkg_version: Option<&Version>) -> String {
+        format!(
+            "start9/{}/{}:{}",
+            pkg_id,
+            self.0,
+            pkg_version.map(|v| { v.as_str() }).unwrap_or("latest")
+        )
+    }
+}
+impl FromStr for ImageId {
+    type Err = InvalidId;
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        Ok(ImageId(Id::try_from(s.to_owned())?))
+    }
+}
+impl<'de> Deserialize<'de> for ImageId {
+    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        Ok(ImageId(Deserialize::deserialize(deserializer)?))
+    }
+}