feat(ui): New status page UI (#1198)

* feat(ui): New status page UI

* docs: Rename labels to extra-labels

* Fix domain expiration test

* feat(ui): Add ui.default-sort-by and ui.default-filter-by

* Change ui.header default value to Gatus

* Re-use EndpointCard in Details.vue as well to avoid duplicate code

* Fix flaky metrics test

* Add subtle green color to "Gatus"

* Remove duplicate title (tooltip is sufficient, no need for title on top of that)

* Fix collapsed group user preferences

* Update status page screenshots

config/ui/ui_test.go

@@ -1,6 +1,7 @@
 package ui
 
 import (
+	"errors"
 	"strconv"
 	"testing"
 )
@@ -25,6 +26,12 @@ func TestConfig_ValidateAndSetDefaults(t *testing.T) {
 	if cfg.Header != defaultHeader {
 		t.Errorf("expected header to be %s, got %s", defaultHeader, cfg.Header)
 	}
+	if cfg.DefaultSortBy != defaultSortBy {
+		t.Errorf("expected defaultSortBy to be %s, got %s", defaultSortBy, cfg.DefaultSortBy)
+	}
+	if cfg.DefaultFilterBy != defaultFilterBy {
+		t.Errorf("expected defaultFilterBy to be %s, got %s", defaultFilterBy, cfg.DefaultFilterBy)
+	}
 }
 
 func TestButton_Validate(t *testing.T) {
@@ -74,4 +81,114 @@ func TestGetDefaultConfig(t *testing.T) {
 	if defaultConfig.Logo != defaultLogo {
 		t.Error("expected GetDefaultConfig() to return defaultLogo, got", defaultConfig.Logo)
 	}
+	if defaultConfig.DefaultSortBy != defaultSortBy {
+		t.Error("expected GetDefaultConfig() to return defaultSortBy, got", defaultConfig.DefaultSortBy)
+	}
+	if defaultConfig.DefaultFilterBy != defaultFilterBy {
+		t.Error("expected GetDefaultConfig() to return defaultFilterBy, got", defaultConfig.DefaultFilterBy)
+	}
+}
+
+func TestConfig_ValidateAndSetDefaults_DefaultSortBy(t *testing.T) {
+	scenarios := []struct {
+		Name          string
+		DefaultSortBy string
+		ExpectedError error
+		ExpectedValue string
+	}{
+		{
+			Name:          "EmptyDefaultSortBy",
+			DefaultSortBy: "",
+			ExpectedError: nil,
+			ExpectedValue: defaultSortBy,
+		},
+		{
+			Name:          "ValidDefaultSortBy_name",
+			DefaultSortBy: "name",
+			ExpectedError: nil,
+			ExpectedValue: "name",
+		},
+		{
+			Name:          "ValidDefaultSortBy_group",
+			DefaultSortBy: "group",
+			ExpectedError: nil,
+			ExpectedValue: "group",
+		},
+		{
+			Name:          "ValidDefaultSortBy_health",
+			DefaultSortBy: "health",
+			ExpectedError: nil,
+			ExpectedValue: "health",
+		},
+		{
+			Name:          "InvalidDefaultSortBy",
+			DefaultSortBy: "invalid",
+			ExpectedError: ErrInvalidDefaultSortBy,
+			ExpectedValue: "invalid",
+		},
+	}
+	for _, scenario := range scenarios {
+		t.Run(scenario.Name, func(t *testing.T) {
+			cfg := &Config{DefaultSortBy: scenario.DefaultSortBy}
+			err := cfg.ValidateAndSetDefaults()
+			if !errors.Is(err, scenario.ExpectedError) {
+				t.Errorf("expected error %v, got %v", scenario.ExpectedError, err)
+			}
+			if cfg.DefaultSortBy != scenario.ExpectedValue {
+				t.Errorf("expected DefaultSortBy to be %s, got %s", scenario.ExpectedValue, cfg.DefaultSortBy)
+			}
+		})
+	}
+}
+
+func TestConfig_ValidateAndSetDefaults_DefaultFilterBy(t *testing.T) {
+	scenarios := []struct {
+		Name            string
+		DefaultFilterBy string
+		ExpectedError   error
+		ExpectedValue   string
+	}{
+		{
+			Name:            "EmptyDefaultFilterBy",
+			DefaultFilterBy: "",
+			ExpectedError:   nil,
+			ExpectedValue:   defaultFilterBy,
+		},
+		{
+			Name:            "ValidDefaultFilterBy_nothing",
+			DefaultFilterBy: "nothing",
+			ExpectedError:   nil,
+			ExpectedValue:   "nothing",
+		},
+		{
+			Name:            "ValidDefaultFilterBy_failing",
+			DefaultFilterBy: "failing",
+			ExpectedError:   nil,
+			ExpectedValue:   "failing",
+		},
+		{
+			Name:            "ValidDefaultFilterBy_unstable",
+			DefaultFilterBy: "unstable",
+			ExpectedError:   nil,
+			ExpectedValue:   "unstable",
+		},
+		{
+			Name:            "InvalidDefaultFilterBy",
+			DefaultFilterBy: "invalid",
+			ExpectedError:   ErrInvalidDefaultFilterBy,
+			ExpectedValue:   "invalid",
+		},
+	}
+	for _, scenario := range scenarios {
+		t.Run(scenario.Name, func(t *testing.T) {
+			cfg := &Config{DefaultFilterBy: scenario.DefaultFilterBy}
+			err := cfg.ValidateAndSetDefaults()
+			if !errors.Is(err, scenario.ExpectedError) {
+				t.Errorf("expected error %v, got %v", scenario.ExpectedError, err)
+			}
+			if cfg.DefaultFilterBy != scenario.ExpectedValue {
+				t.Errorf("expected DefaultFilterBy to be %s, got %s", scenario.ExpectedValue, cfg.DefaultFilterBy)
+			}
+		})
+	}
 }