chore(site): add lint and format commands to justfile

Author: matthewjberger

site/justfile

@@ -2,6 +2,14 @@
 @just:
     just --list
 
+# Formats the code using cargo fmt
+format:
+    cargo fmt --all
+
+# Runs linter and displays warnings
+lint:
+    cargo clippy --all -- -D warnings
+
 # Install dependencies
 install:
     npm install