feat: add i18n support with Spanish localization and documentation improvements

- Add internationalization system with Spanish support
- Create contexts and sessions tutorial documentation
- Fix broken Warp sponsorship image URL
- Add locale detection from environment variables
- Update VSCode settings with new dictionary words
- Exclude VSCode settings from version workflows
- Update pattern descriptions and explanations
- Add comprehensive i18n test coverage

web/static/data/pattern_descriptions.json

@@ -1332,15 +1332,6 @@
         "DEVELOPMENT"
       ]
     },
-    {
-      "patternName": "solve_with_cot",
-      "description": "Solve problems using chain-of-thought reasoning.",
-      "tags": [
-        "AI",
-        "ANALYSIS",
-        "LEARNING"
-      ]
-    },
     {
       "patternName": "suggest_pattern",
       "description": "Recommend Fabric patterns based on user requirements.",