Add js web stuff to landing page + documentation

go/cmd/kjol-web/app/server.gen.go

@@ -0,0 +1,11 @@
+// Code generated by wasmgen. DO NOT EDIT.
+
+//go:build !(js && wasm)
+
+package app
+
+import "kjol/rsc"
+
+func init() {
+	rsc.Register("ServerCounter", ServerCounter)
+}