feat(webui): bootstrap account settings management with light and dark mode

pkg/webui/index.go

@@ -3,14 +3,23 @@ package webui
 import (
 	"fmt"
 	"net/http"
+
+	"git.adyxax.org/adyxax/tfstated/pkg/model"
 )
 
 type Page struct {
+	LightMode bool
 	Precedent string
 	Section   string
 	Title     string
 }
 
+func makePage(r *http.Request, page *Page) *Page {
+	settings := r.Context().Value(model.SettingsContextKey{}).(*model.Settings)
+	page.LightMode = settings.LightMode
+	return page
+}
+
 func handleIndexGET() http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		if r.URL.Path == "/" {