feat: Themes and appeareance settings are now local to your device and not synced (#2847)

packages/snjs/lib/Migrations/Versions/2_208_0.ts

@@ -0,0 +1,55 @@
+import { LocalPrefKey, ApplicationStage } from '@standardnotes/services'
+import { Migration } from '@Lib/Migrations/Migration'
+import { PrefDefaults, PrefKey } from '@standardnotes/models'
+
+export class Migration2_208_0 extends Migration {
+  static override version(): string {
+    return '2.208.0'
+  }
+
+  protected registerStageHandlers(): void {
+    this.registerStageHandler(ApplicationStage.FullSyncCompleted_13, async () => {
+      await this.migrateSyncedPreferencesToLocal()
+
+      this.markDone()
+    })
+  }
+
+  private async migrateSyncedPreferencesToLocal(): Promise<void> {
+    this.services.preferences.setLocalValue(
+      LocalPrefKey.ActiveThemes,
+      this.services.preferences.getValue(
+        PrefKey.DEPRECATED_ActiveThemes,
+        PrefDefaults[PrefKey.DEPRECATED_ActiveThemes],
+      ),
+    )
+    this.services.preferences.setLocalValue(
+      LocalPrefKey.UseSystemColorScheme,
+      this.services.preferences.getValue(
+        PrefKey.DEPRECATED_UseSystemColorScheme,
+        PrefDefaults[PrefKey.DEPRECATED_UseSystemColorScheme],
+      ),
+    )
+    this.services.preferences.setLocalValue(
+      LocalPrefKey.AutoLightThemeIdentifier,
+      this.services.preferences.getValue(
+        PrefKey.DEPRECATED_AutoLightThemeIdentifier,
+        PrefDefaults[PrefKey.DEPRECATED_AutoLightThemeIdentifier],
+      ),
+    )
+    this.services.preferences.setLocalValue(
+      LocalPrefKey.AutoDarkThemeIdentifier,
+      this.services.preferences.getValue(
+        PrefKey.DEPRECATED_AutoDarkThemeIdentifier,
+        PrefDefaults[PrefKey.DEPRECATED_AutoDarkThemeIdentifier],
+      ),
+    )
+    this.services.preferences.setLocalValue(
+      LocalPrefKey.UseTranslucentUI,
+      this.services.preferences.getValue(
+        PrefKey.DEPRECATED_UseTranslucentUI,
+        PrefDefaults[PrefKey.DEPRECATED_UseTranslucentUI],
+      ),
+    )
+  }
+}