New feature:

- Per-file-saved customization sync has been shipped.
- Customisation sync has got beta3.
Improved:
- Start-up speed has been improved.
Fixed:
- On the customisation sync dialogue, buttons are kept within the screen.
- No more unnecessary entries on `data.json` for customisation sync.
- Selections are no longer lost while updating customisation items.
Tidied on source codes:
- Many typos have been fixed.
- Some unnecessary type casting removed.

src/ui/ObsidianLiveSyncSettingTab.ts

@@ -2231,7 +2231,7 @@ ${stringifyYaml(pluginConfig)}`;
         // With great respect, thank you TfTHacker!
         // Refer: https://github.com/TfTHacker/obsidian42-brat/blob/main/src/features/BetaPlugins.ts
         const containerPluginSettings = containerEl.createDiv();
-        this.createEl(containerPluginSettings, "h3", { text: "Customization sync (beta)" });
+        this.createEl(containerPluginSettings, "h3", { text: "Customization sync (beta 3)" });
 
         const enableOnlyOnPluginSyncIsNotEnabled = enableOnly(() => this.isConfiguredAs("usePluginSync", false));
         const visibleOnlyOnPluginSyncEnabled = visibleOnly(() => this.isConfiguredAs("usePluginSync", true));
@@ -2242,6 +2242,9 @@ ${stringifyYaml(pluginConfig)}`;
                 onUpdate: enableOnlyOnPluginSyncIsNotEnabled
             });
 
+        new Setting(containerPluginSettings)
+            .autoWireToggle("usePluginSyncV2")
+
         new Setting(containerPluginSettings)
             .autoWireToggle("usePluginSync", {
                 onUpdate: enableOnly(() => !this.isConfiguredAs("deviceAndVaultName", ""))