Slug: Combine various slugify fixes for special character handling (#73164)

* combine various slugify fixes for special character handling

* a couple more test cases

* update more tests

* goimports

pkg/services/accesscontrol/models_test.go

@@ -64,7 +64,7 @@ func TestSaveExternalServiceRoleCommand_Validate(t *testing.T) {
 				Permissions:       []Permission{{Action: "users:read", Scope: "users:id:1"}},
 			},
 			wantErr: false,
-			wantID:  "thisis-a-very-strange-___-app-name",
+			wantID:  "thisis-a-very-strange-app-name",
 		},
 		{
 			name: "invalid empty Action",

pkg/services/dashboards/models_test.go

@@ -77,9 +77,9 @@ func TestSlugifyTitle(t *testing.T) {
 	testCases := map[string]string{
 		"Grafana Play Home": "grafana-play-home",
 		"snöräv-över-ån":    "snorav-over-an",
-		"漢字":                "%e6%bc%a2%e5%ad%97",       // "han-zi",      // Hanzi for hanzi
-		"🇦🇶":                "%f0%9f%87%a6%f0%9f%87%b6", // flag of Antarctica-emoji, using fallback
-		"𒆠":                 "%f0%92%86%a0",             // cuneiform Ki, using fallback
+		"漢字":                "e6bca2-e5ad97",     // "han-zi",      // Hanzi for hanzi
+		"🇦🇶":                "f09f87a6-f09f87b6", // flag of Antarctica-emoji, using fallback
+		"𒆠":                 "f09286a0",          // cuneiform Ki, using fallback
 	}
 
 	for input, expected := range testCases {