chore: simplify plugin readmes, changelogs and manifest descriptions

plugins/workspaces/CHANGELOG.md

@@ -2,14 +2,6 @@
 
 ## 1.0.0
 
-Bundled with Termix 2.9.0.
+First release, bundled with Termix 2.9.0.
 
-- Owns its data: core's `user_workspaces` table is renamed to
-  `p_workspaces_workspaces` on first activation, keeping every saved workspace.
-- New `workspaces.use` permission, given to the admin and user roles. Without
-  it the rail item is hidden and the routes answer 403.
-- Saved workspaces sync between the desktop app and a server. The per-device
-  "Last Session" does not.
-- Offers `workspaces.saved` to other plugins, used by the AI assistant.
-- A tab from a plugin that is off is kept as a placeholder when a workspace is
-  applied, instead of being dropped.
+Save your open tabs and split layouts as named workspaces and bring them back later. Workspaces sync between the desktop app and a server.