Add pt-BR docs translation (#3039)

* docs: add pt-br translations

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* Update mcp/overview.mdx brazilian docs

Its en-US counterpart was updated after I did a pass,
so now it includes the new section about @CrewBase

docs/en/tools/search-research/overview.mdx

@@ -0,0 +1,71 @@
+---
+title: "Overview"
+description: "Perform web searches, find repositories, and research information across the internet"
+icon: "face-smile"
+---
+
+These tools enable your agents to search the web, research topics, and find information across various platforms including search engines, GitHub, and YouTube.
+
+## **Available Tools**
+
+<CardGroup cols={2}>
+  <Card title="Serper Dev Tool" icon="google" href="/en/tools/search-research/serperdevtool">
+    Google search API integration for comprehensive web search capabilities.
+  </Card>
+
+  <Card title="Brave Search Tool" icon="shield" href="/en/tools/search-research/bravesearchtool">
+    Privacy-focused search with Brave's independent search index.
+  </Card>
+
+  <Card title="Exa Search Tool" icon="magnifying-glass" href="/en/tools/search-research/exasearchtool">
+    AI-powered search for finding specific and relevant content.
+  </Card>
+
+  <Card title="LinkUp Search Tool" icon="link" href="/en/tools/search-research/linkupsearchtool">
+    Real-time web search with fresh content indexing.
+  </Card>
+
+  <Card title="GitHub Search Tool" icon="github" href="/en/tools/search-research/githubsearchtool">
+    Search GitHub repositories, code, issues, and documentation.
+  </Card>
+
+  <Card title="Website Search Tool" icon="globe" href="/en/tools/search-research/websitesearchtool">
+    Search within specific websites and domains.
+  </Card>
+
+  <Card title="Code Docs Search Tool" icon="code" href="/en/tools/search-research/codedocssearchtool">
+    Search through code documentation and technical resources.
+  </Card>
+
+  <Card title="YouTube Channel Search" icon="youtube" href="/en/tools/search-research/youtubechannelsearchtool">
+    Search YouTube channels for specific content and creators.
+  </Card>
+
+  <Card title="YouTube Video Search" icon="play" href="/en/tools/search-research/youtubevideosearchtool">
+    Find and analyze YouTube videos by topic, keyword, or criteria.
+  </Card>
+</CardGroup>
+
+## **Common Use Cases**
+
+- **Market Research**: Search for industry trends and competitor analysis
+- **Content Discovery**: Find relevant articles, videos, and resources
+- **Code Research**: Search repositories and documentation for solutions
+- **Lead Generation**: Research companies and individuals
+- **Academic Research**: Find scholarly articles and technical papers
+
+```python
+from crewai_tools import SerperDevTool, GitHubSearchTool, YoutubeVideoSearchTool
+
+# Create research tools
+web_search = SerperDevTool()
+code_search = GitHubSearchTool()
+video_research = YoutubeVideoSearchTool()
+
+# Add to your agent
+agent = Agent(
+    role="Research Analyst",
+    tools=[web_search, code_search, video_research],
+    goal="Gather comprehensive information on any topic"
+)
+```