Add reload notice to githubPullRequests.ignoreSubmodules setting description (#7794)

* Initial plan

* Add reload notice to ignoreSubmodules setting description

Co-authored-by: alexr00 <38270282+alexr00@users.noreply.github.com>

* Make ignoreSubmodules reload notice more verbose

Changed from "Changes require a reload to apply" to "A window reload is required for changes to this setting to take effect" to provide clearer and more detailed information to users.

Co-authored-by: alexr00 <38270282+alexr00@users.noreply.github.com>

* Commit

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: alexr00 <38270282+alexr00@users.noreply.github.com>

Author: Copilot

package.nls.json

@@ -67,7 +67,7 @@
 	"githubPullRequests.allowFetch.description": "Allows `git fetch` to be run for checked-out pull request branches when checking for updates to the pull request.",
 	"githubPullRequests.ignoredPullRequestBranches.description": "Prevents branches that are associated with a pull request from being automatically detected. This will prevent review mode from being entered on these branches.",
 	"githubPullRequests.ignoredPullRequestBranches.items": "Branch name",
-	"githubPullRequests.ignoreSubmodules.description": "Prevents repositories that are submodules from being managed by the GitHub Pull Requests extension.",
+	"githubPullRequests.ignoreSubmodules.description": "Prevents repositories that are submodules from being managed by the GitHub Pull Requests extension. A window reload is required for changes to this setting to take effect.",
 	"githubPullRequests.neverIgnoreDefaultBranch.description": "Never offer to ignore a pull request associated with the default branch of a repository.",
 	"githubPullRequests.overrideDefaultBranch.description": "The default branch for a repository is set on github.com. With this setting, you can override that default with another branch.",
 	"githubPullRequests.postCreate.description": "The action to take after creating a pull request.",