settings: fix typo in templateExtensions description

[myeunee]

Corrected a typo in the "templateExtensions" description where "treateed" was mistakenly used instead of "treated".

This PR improves the clarity of the documentation by fixing the typo in the settings description, ensuring accuracy for users.

This PR will be imported into Gerrit with the title and first comment (this text) used to generate the subject and body of the Gerrit change.

Please ensure you adhere to every item in this list:

• The PR title follows the format: frob the quux before blarfing
  • The verb tense + phrase should complete the sentence: "This change modifies Go to ___________"
  • Verb in lowercase
  • No trailing period
  • Title under 76 characters
• No Markdown in the commit message.
• The first PR comment (this one) is wrapped at 76 characters.
• If there is a corresponding issue, include either Fixes golang/vscode-go#1234 or Updates golang/vscode-go#1234 depending on whether this is a complete fix.
• Refer to repos using owner/repo#issue_number syntax when applicable.
• No Signed-off-by lines; CLA compliance is enforced by the bots.

[google-cla]

Thanks for your pull request! It looks like this may be your first contribution to a Google open source project. Before we can look at your pull request, you'll need to sign a Contributor License Agreement (CLA).

View this failed invocation of the CLA check for more information.

For the most up to date status, view the checks section at the bottom of the pull request.

[gopherbot]

This PR (HEAD: e982e49) has been imported to Gerrit for code review.

Please visit Gerrit at https://go-review.googlesource.com/c/vscode-go/+/611915.

Important tips:

• Don't comment on this PR. All discussion takes place in Gerrit.
• You need a Gmail or other Google account to log in to Gerrit.
• To change your code in response to feedback:
  • Push a new commit to the branch used by your GitHub PR.
  • A new "patch set" will then appear in Gerrit.
  • Respond to each comment by marking as Done in Gerrit if implemented as suggested. You can alternatively write a reply.
  • Critical: you must click the blue Reply button near the top to publish your Gerrit responses.
  • Multiple commits in the PR will be squashed by GerritBot.
• The title and description of the GitHub PR are used to construct the final commit message.
  • Edit these as needed via the GitHub web interface (not via Gerrit or git).
  • You should word wrap the PR description at ~76 characters unless you need longer lines (e.g., for tables or URLs).
• See the Sending a change via GitHub and Reviews sections of the Contribution Guide as well as the FAQ for details.

[gopherbot]

Message from Gopher Robot:

Patch Set 1:

(1 comment)

---

Please don’t reply on this GitHub thread. Visit golang.org/cl/611915.
After addressing review feedback, remember to publish your drafts!

[gopherbot]

Message from Gopher Robot:

Patch Set 1:

Congratulations on opening your first change. Thank you for your contribution!

Next steps:
A maintainer will review your change and provide feedback. See
https://go.dev/doc/contribute#review for more info and tips to get your
patch through code review.

Most changes in the Go project go through a few rounds of revision. This can be
surprising to people new to the project. The careful, iterative review process
is our way of helping mentor contributors and ensuring that their contributions
have a lasting impact.

---

Please don’t reply on this GitHub thread. Visit golang.org/cl/611915.
After addressing review feedback, remember to publish your drafts!

[gopherbot]

Message from 허윤지:

Patch Set 2:

(1 comment)

---

Please don’t reply on this GitHub thread. Visit golang.org/cl/611915.
After addressing review feedback, remember to publish your drafts!

[gopherbot]

This PR (HEAD: 437e2df) has been imported to Gerrit for code review.

Please visit Gerrit at https://go-review.googlesource.com/c/vscode-go/+/611915.

Important tips:

• Don't comment on this PR. All discussion takes place in Gerrit.
• You need a Gmail or other Google account to log in to Gerrit.
• To change your code in response to feedback:
  • Push a new commit to the branch used by your GitHub PR.
  • A new "patch set" will then appear in Gerrit.
  • Respond to each comment by marking as Done in Gerrit if implemented as suggested. You can alternatively write a reply.
  • Critical: you must click the blue Reply button near the top to publish your Gerrit responses.
  • Multiple commits in the PR will be squashed by GerritBot.
• The title and description of the GitHub PR are used to construct the final commit message.
  • Edit these as needed via the GitHub web interface (not via Gerrit or git).
  • You should word wrap the PR description at ~76 characters unless you need longer lines (e.g., for tables or URLs).
• See the Sending a change via GitHub and Reviews sections of the Contribution Guide as well as the FAQ for details.

[gopherbot]

Message from 허윤지:

Patch Set 3: Code-Review+1

---

Please don’t reply on this GitHub thread. Visit golang.org/cl/611915.
After addressing review feedback, remember to publish your drafts!

[gopherbot]

Message from 허윤지:

Patch Set 3:

(1 comment)

---

Please don’t reply on this GitHub thread. Visit golang.org/cl/611915.
After addressing review feedback, remember to publish your drafts!

[gopherbot]

Message from Hyang-Ah Hana Kim:

Patch Set 3:

(1 comment)

---

Please don’t reply on this GitHub thread. Visit golang.org/cl/611915.
After addressing review feedback, remember to publish your drafts!