feat(i18n): Refactor prompts and search agent to enhance language handling and formatting instructions

- Updated academicSearch, redditSearch, webSearch, wolframAlpha, writingAssistant, and youtubeSearch prompts to improve clarity and consistency in formatting instructions.
- Added language handling instructions to writingAssistant and other prompts for better localization support.
- Modified MetaSearchAgent to include locale and language parameters for improved prompt generation and language-specific responses.

# Conflicts:
#	Dockerfile

app.dockerfile

@@ -7,7 +7,6 @@ RUN yarn install --frozen-lockfile --network-timeout 600000
 
 COPY tsconfig.json next.config.mjs next-env.d.ts postcss.config.js drizzle.config.ts tailwind.config.ts ./
 COPY src ./src
-COPY messages ./messages
 COPY public ./public
 
 RUN mkdir -p /home/perplexica/data