chore: remove applicationinsights-web-basic override after upstream fix (fixes #614)

@microsoft/applicationinsights-web-basic was pinned to ~3.3.4 to work
around @vscode/extension-telemetry not declaring applicationinsights-common
as a direct dependency. The fix shipped in extension-telemetry@1.5.2
(microsoft/vscode-extension-telemetry#245).

vscode-azext-utils@4.1.x now depends on extension-telemetry@^1.5.2, so
the override is no longer needed.

Regenerated package-lock.json to collapse the previously nested duplicate
AI packages, recovering ~100-120 KB from the extension bundle.

Author: tnaum-ms

package-lock.json

@@ -206,11 +206,10 @@
     "vscode-uri": "~3.1.0",
     "zod": "~4.3.6"
   },
-  "//overrides": "Pin transitive dependencies: glob 12 for latest, test-exclude 7 for compatibility, applicationinsights-web-basic 3.3.x to retain applicationinsights-common needed by @vscode/extension-telemetry (see https://github.com/microsoft/vscode-extension-telemetry/issues/244, fixed in 1.5.2 but not yet released)",
+  "//overrides": "Pin transitive dependencies: glob 12.0.x for latest, test-exclude 7 for compatibility.",
   "overrides": {
     "glob": "~12.0.0",
-    "test-exclude": "~7.0.1",
-    "@microsoft/applicationinsights-web-basic": "~3.3.4"
+    "test-exclude": "~7.0.1"
   },
   "extensionDependencies": [],
   "contributes": {