Load plugins before Login page and workspace are initialized

I noticed that there may be situations when there are delays during plugin rendering in workspace tabs.

So I researched how plugin are loaded and I realized that we need to load plugins before the Workspace is initialized

This opens the door to change various workspace settings (like the appearance of the search input, or tab position, override spark properties through plugin) through plugin mechanism

Also it is going to be easier to extend the whole sparkplug mechanism, making it more powerful