refactor: use optimized image for background

.env.example

@@ -204,7 +204,7 @@ TINYAUTH_UI_TITLE="Tinyauth"
 # Message displayed on the forgot password page.
 TINYAUTH_UI_FORGOTPASSWORDMESSAGE="You can change your password by changing the configuration."
 # Path to the background image.
-TINYAUTH_UI_BACKGROUNDIMAGE="/background.jpg"
+TINYAUTH_UI_BACKGROUNDIMAGE="/background.webp"
 # Enable UI warnings.
 TINYAUTH_UI_WARNINGSENABLED=true
 

README.md

@@ -87,4 +87,4 @@ A huge thank you to [selfh.st](https://selfh.st) for their generous donation to
 
 - **Freepik** for providing the police hat and badge.
 - **Renee French** for the original gopher logo.
-- **Syrhu** for providing the background image of the app.
+- [Siru Zhou](https://unsplash.com/@syrhu) for providing the background image of the app.

internal/model/config.go

@@ -53,7 +53,7 @@ func NewDefaultConfiguration(runtimeEnv RuntimeEnv) *Config {
 		UI: UIConfig{
 			Title:                 "Tinyauth",
 			ForgotPasswordMessage: "You can change your password by changing the configuration.",
-			BackgroundImage:       "/background.jpg",
+			BackgroundImage:       "/background.webp",
 			WarningsEnabled:       true,
 		},
 		LDAP: LDAPConfig{

internal/test/test.go

@@ -18,7 +18,7 @@ func CreateTestConfigs(t *testing.T) (model.Config, model.RuntimeConfig) {
 		UI: model.UIConfig{
 			Title:                 "Tinyauth Test",
 			ForgotPasswordMessage: "foo",
-			BackgroundImage:       "/background.jpg",
+			BackgroundImage:       "/background.webp",
 			WarningsEnabled:       true,
 		},
 		OAuth: model.OAuthConfig{