Add release notes for DevTools 2.51.1

src/content/tools/devtools/release-notes/release-notes-2.51.1.md

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+---
+title: DevTools 2.51.1 release notes
+shortTitle: 2.51.1 release notes
+breadcrumb: 2.51.1
+showToc: false
+---
+
+The 2.51.1 release of the Dart and Flutter DevTools
+includes the following changes among other general improvements.
+To learn more about DevTools, check out the
+[DevTools overview](/tools/devtools/overview).
+
+## General updates
+
+- Flutter beta channel users were opted into the DevTools-on-Wasm experiment.
+  All other users can still enable the Wasm-compiled DevTools from the settings
+  dialog. - [#9455](https://github.com/flutter/devtools/pull/9455)
+- Added a horizontal scrollbar to data tables to help with navigation. -
+  [#9482](https://github.com/flutter/devtools/pull/9482)
+- Made it possible to resize data table columns by dragging the header separators. -
+  [#9485](https://github.com/flutter/devtools/pull/9485)
+
+## Inspector updates
+
+- Fixed an issue where selecting a widget with the Inspector would open the
+  widget definition file instead of the user's project file. -
+  [#176530](https://github.com/flutter/flutter/pull/176530)
+
+## Network profiler updates
+
+- Fixed layout of the "error count" badge in the tab name. -
+  [#9470](https://github.com/flutter/devtools/pull/9470)
+- Fixed display of "Response Headers" and "Request Headers" when there are no
+  headers. - [#9492](https://github.com/flutter/devtools/pull/9492)
+- Added a banner to clearly indicate when DevTools is not logging network
+  requests. - [#9495](https://github.com/flutter/devtools/pull/9495)
+
+## VS Code updates
+
+- Fixed issue preventing shortcuts like `Cmd`+`C` and `Cmd`+`V` from working when DevTools was
+  embedded inside VS Code on macOS. -
+  [#9472](https://github.com/flutter/devtools/pull/9472)
+
+## Full commit history
+
+To find a complete list of changes in this release, check out the
+[DevTools git log](https://github.com/flutter/devtools/tree/v2.51.1).