refactor: rename modules and update migration docs

BREAKING CHANGE
Module paths moved to `github.com/HugoBlox/kit` with new names:
- core `blox-tailwind` → `blox`
- analytics → `analytics`
- netlify → `integrations/netlify`
- slides (reveal) → `slides`
Update go.mod, module.yaml/params, scripts, tests, and v0.11 migration guide accordingly.

modules/blox/assets/css/components/all.css

@@ -0,0 +1,12 @@
+@import "page.css";
+@import "task-list.css";
+@import "copy.css";
+@import "sidebar-left.css";
+@import "charts.css";
+@import "steps.css";
+@import "cards.css";
+@import "math.css";
+@import "notebook.css";
+@import "author-notes.css";
+@import "glassmorphism.css";
+@import "cover.css";