Improve copilotHover description. (#13461)

* Improve copilotHover description.

Author: sean-mcmanus

Extension/package.nls.json

@@ -785,9 +785,9 @@
         ]
     },
     "c_cpp.configuration.copilotHover.markdownDescription": {
-        "message": "If `disabled`, no Copilot information will appear in Hover.",
+        "message": "If `disabled`, no 'Generate Copilot summary' option will appear on hover.",
         "comment": [
-            "Markdown text between `` should not be translated or localized (they represent literal text) and the capitalization, spacing, and punctuation (including the ``) should not be altered."
+            " {Locked=\"`disabled`\"} Markdown text between `` should not be translated or localized (they represent literal text) and the capitalization, spacing, and punctuation (including the ``) should not be altered."
         ]
     },
     "c_cpp.configuration.renameRequiresIdentifier.markdownDescription": {
@@ -1041,4 +1041,4 @@
     "c_cpp.configuration.refactoring.includeHeader.never.description": "Never include the header file.",
     "c_cpp.languageModelTools.configuration.displayName": "C/C++ configuration",
     "c_cpp.languageModelTools.configuration.userDescription": "Configuration of the active C or C++ file, like language standard version and target platform."
-}
+}