[lldb-dap] Reword the description in package.json

Match the description of the Visual Studio Code extension with the
wording used by popular/official extensions. Most extension spell out
"Visual Studio Code" and use "in" instead of "from".

Author: JDevlieghere

lldb/tools/lldb-dap/package.json

@@ -4,7 +4,7 @@
   "version": "0.2.10",
   "publisher": "llvm-vs-code-extensions",
   "homepage": "https://lldb.llvm.org",
-  "description": "LLDB debugging from VSCode",
+  "description": "Debugging with LLDB in Visual Studio Code",
   "license": "Apache 2.0 License with LLVM exceptions",
   "repository": {
     "type": "git",
@@ -550,4 +550,4 @@
       }
     ]
   }
-}
+}