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.

scripts/sync_i18n.py

@@ -12,7 +12,7 @@ from pathlib import Path
 from ruamel.yaml import YAML
 
 I18N_PATH = Path(__file__).resolve().parents[1].joinpath(
-    'modules', 'blox-tailwind', 'i18n')
+    'modules', 'blox', 'i18n')
 MASTER_PACK = I18N_PATH.joinpath('en.yaml')
 
 yaml = YAML()