Release version 1.1.22 - UI improvements and bug documentation

- Increased width of label input fields in admin (short → regular)
- Documented double-install bug workaround in CHANGELOG
- Updated version to 1.1.22 across all files
- Created release package with proper exclusions

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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

composer.json

@@ -1,7 +1,7 @@
 {
     "name": "magdev/wc-tier-package-prices",
     "description": "WooCommerce plugin for tier pricing and package prices with Twig templates",
-    "version": "1.1.21",
+    "version": "1.1.22",
     "type": "wordpress-plugin",
     "license": "GPL-2.0-or-later",
     "authors": [