chore: Remove legacy Gemini models from README

chore: Remove create_icons.py script as it is no longer needed

feat: Enhance Gemini Summarizer with iframe panel and selection toolbar (goodbye sidebar)

Merge branch 'main' of https://github.com/aayushrautela/chromium-ai-sidebar

Refactor summary handling and add prompts.js for summary generation

Removed legacy models

First public version