Plugin Store's plugins should have label to indicate installed/not-installed

[jjw24]

In the Settings, the Plugin Store tab shows a large list of plugins.

This screen should show which of these plugins are already installed.

Also, there should be a filter to show only those filters that are installed (or not installed).

• The "show only installed plugins" filter will allow us to check whether to disable any of them.
• The "show only not-installed plugins" filter will allow us to focus on new plugins

Originally posted by @raindropsfromsky in #956 (comment)

[raindropsfromsky]

Further suggestion: If the plugin is installed, show its card differently.
(e,g, different line/fill color, or line thickness)

Once this feature is implemented, there is no need to keep two separate pages for plugins in the Settings.

• The Plugin page lists only the installed plugins with a facility to turn it off
• The Plugin store page gives a master list of all plugins, but without any controls.

So, the plugin page can be eliminated.

And in the Plugin Store page, please provide the following controls for each plugin:

1. A Toggle button to turn the plugin on/off
2. A uninstall/remove button

(Note: Both buttons should appear only when the plugin is installed.)

[taooceros]

The plugin page also serves a functionality that allows plugins to provide setting control. I think it would be messy if the that is mixed with the plugin store.

[github-actions]

This issue is stale because it has been open 45 days with no activity. Remove stale label or comment or this will be closed in 5 days.

[ptournet]

My take on this issue is that the Plugin Store should only display the plugins that have not been installed yet.
And there should then be an uninstall button on the Plugin page (in addition to the turn off switch).
Moreover, if would be great, in the Plugin Store, when clicking on a plugin to have a description of what it's supposed to do...