feat(theme): default new accounts to the dark theme (#2575)

fluxer_app/src/features/app/components/setup/SelfHostedSetupWizardGate.tsx

@@ -430,7 +430,7 @@ export const SelfHostedSetupWizardGate = observer(() => {
 	const [submitError, setSubmitError] = useState<string | null>(null);
 	const [stepNavigationLocked, setStepNavigationLocked] = useState(false);
 	const [wizardSnapshot, setWizardSnapshot] = useState(createSetupWizardSnapshot);
-	const [setupTheme, setSetupTheme] = useState<ThemeType>(ThemeTypes.SYSTEM);
+	const [setupTheme, setSetupTheme] = useState<ThemeType>(ThemeTypes.DARK);
 	const [forceUnauthenticatedSetup, setForceUnauthenticatedSetup] = useState(false);
 	const [integrationDraft, setIntegrationDraft] = useState<ServiceIntegrationDraft>(() => ({
 		...DEFAULT_INTEGRATION_DRAFT,

fluxer_app/src/features/user/state/UserSettings.ts

@@ -257,7 +257,7 @@ class UserSettingsState {
 	status: StatusType = StatusTypes.ONLINE;
 	statusResetsAt: string | null = null;
 	statusResetsTo: string | null = null;
-	theme: string = ThemeTypes.SYSTEM;
+	theme: string = ThemeTypes.DARK;
 	timeFormat: number = TimeFormatTypes.AUTO;
 	locale: string = 'en-US';
 	restrictedGuilds: Array<string> = [];