Update language to apply quiet mode (posit-dev/positron-python#427)

Author: juliasilge

extensions/positron-python/package.nls.json

@@ -66,7 +66,7 @@
     "python.missingPackage.severity.description": "Set severity of missing packages in requirements.txt or pyproject.toml",
     "python.pipenvPath.description": "Path to the pipenv executable to use for activation.",
     "python.poetryPath.description": "Path to the poetry executable.",
-    "python.quietMode.description": "Start Positron's IPython shell in quiet mode, to suppress initial version and help messages (requires restart to take effect).",
+    "python.quietMode.description": "Start Positron's IPython shell in quiet mode, to suppress initial version and help messages (shut down Python and start a new Python session to apply).",
     "python.EnableREPLSmartSend.description": "Toggle Smart Send for the Python REPL. Smart Send enables sending the smallest runnable block of code to the REPL on Shift+Enter and moves the cursor accordingly.",
     "python.tensorBoard.logDirectory.description": "Set this setting to your preferred TensorBoard log directory to skip log directory prompt when starting TensorBoard.",
     "python.tensorBoard.logDirectory.markdownDeprecationMessage": "Tensorboard support has been moved to the extension [Tensorboard extension](https://marketplace.visualstudio.com/items?itemName=ms-toolsai.tensorboard). Instead use the setting `tensorBoard.logDirectory`.",