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

pkg/model/account.go

@@ -2,6 +2,7 @@ package model
 
 import (
 	"crypto/subtle"
+	"encoding/json"
 	"time"
 
 	"git.adyxax.org/adyxax/tfstated/pkg/helpers"
@@ -17,7 +18,7 @@ type Account struct {
 	IsAdmin      bool
 	Created      time.Time
 	LastLogin    time.Time
-	Settings     any
+	Settings     json.RawMessage
 }
 
 func (account *Account) CheckPassword(password string) bool {

pkg/model/settings.go

@@ -0,0 +1,7 @@
+package model
+
+type SettingsContextKey struct{}
+
+type Settings struct {
+	LightMode bool `json:"light_mode"`
+}