Fix Gemini Parser

Fix Gemini Parser repairs inline Markdown and mathematical expressions in Google Gemini, including while a response is still streaming. Features - Live rendering — Applies formatting fixes as text arrives, without waiting for the response to finish. - Markdown formatting — Supports bold, italic, strikethrough, underline, and inline code, including Korean suffixes next to emphasis. - Math rendering — Supports $...$, $$...$$, \(...\), and \[...\] expressions using KaTeX. - Flexible toggles — Turn rendering or individual formats on and off, including during streaming. Turning the extension off restores Gemini’s original display. - Custom styling — Set colors, opacity, and custom CSS for individual formatting types. - Local processing — Response text is processed in your browser. Some complex content, such as links, citations, and attachments, keeps Gemini’s native formatting.