Change Close to either Close issue or Close pull request (#23506)

Following [a discord
discussion](https://discord.com/channels/322538954119184384/977026554909581334/1085560443919147138),
the close button in the issue comment box is more descriptive.

# Before
For both issue and pull request

![image](https://user-images.githubusercontent.com/20454870/225449237-20c3a036-4b0f-40ab-b2f9-e72eff213165.png)

# After
## Issue

![image](https://user-images.githubusercontent.com/20454870/225550855-aa138ee5-e620-4f8c-b17b-91281677ecab.png)

## Pull request

![image](https://user-images.githubusercontent.com/20454870/225550750-4dd0906d-39a9-4678-9aee-e97e5e8c302d.png)

---------

Signed-off-by: Yarden Shoham <hrsi88@gmail.com>
Co-authored-by: delvh <dev.lh@web.de>

options/locale/locale_en-US.ini

@@ -1369,7 +1369,7 @@ issues.context.reference_issue = Reference in New Issue
 issues.context.edit = Edit
 issues.context.delete = Delete
 issues.no_content = There is no content yet.
-issues.close_issue = Close
+issues.close = Close Issue
 issues.pull_merged_at = `merged commit <a class="ui sha" href="%[1]s"><code>%[2]s</code></a> into <b>%[3]s</b> %[4]s`
 issues.manually_pull_merged_at = `merged commit <a class="ui sha" href="%[1]s"><code>%[2]s</code></a> into <b>%[3]s</b> manually %[4]s`
 issues.close_comment_issue = Comment and Close
@@ -1654,6 +1654,7 @@ pulls.update_branch_rebase = Update branch by rebase
 pulls.update_branch_success = Branch update was successful
 pulls.update_not_allowed = You are not allowed to update branch
 pulls.outdated_with_base_branch = This branch is out-of-date with the base branch
+pulls.close = Close Pull Request
 pulls.closed_at = `closed this pull request <a id="%[1]s" href="#%[1]s">%[2]s</a>`
 pulls.reopened_at = `reopened this pull request <a id="%[1]s" href="#%[1]s">%[2]s</a>`
 pulls.merge_instruction_hint = `You can also view <a class="show-instruction">command line instructions</a>.`