fix: retain dock order when lifecycle conditions are triggered

[camc314]

Let me know if you can think of a better way todo this.

But... when you launch a platform. Reorder the dock entries then toggle the scheme (e.g. light -> dark) this causes the dock to be "refreshed":

workspace-starter/how-to/workspace-platform-starter/client/src/framework/workspace/dock.ts

Line 85 in 2e0d2a1

themeChangedSubscriptionId = subscribeLifecycleEvent("theme-changed", async () => refreshDock());

which uses dockProviderOptions here:

workspace-starter/how-to/workspace-platform-starter/client/src/framework/workspace/dock.ts

Line 188 in 2e0d2a1

const entries = Array.isArray(dockProviderOptions.entries) ? [...dockProviderOptions.entries] : [];

this is not updated when the dock is reordered (it's only set when the dock is initially registered)

Hence, when we call updateDockProviderConfig, the order is then incorrect.

This PR fixes this behavious, by when saveConfig is called, it updates the dockProviderOptions.entries variable to reflect the new order.

[camc314]

tested cases:
Test case A:

1. launch platform, register dock
2. change layout of dock
3. close platform and relaunch
4. assets that the current dock layout is the same as before the platform is closed

^^ works as expected