chore: Update closed and opened templates to have compact look (#136)

* Update 'closed' and 'opened' templates. Make them have more compact look with less repeating emojis. Only the main identifier emoji will stay.

Author: bbaarriiss

src/main/resources/templates/en/pull_request.closed.template

@@ -4,7 +4,5 @@
 {{^pullRequest.merged}}
 ❌ **Pull Request Closed!** by **{{ sender.login }}**
 {{/pullRequest.merged}}
-
-📦 **Repository:** {{repository.fullName}}
-🔖 **Title:** {{pullRequest.title}}
-🔗 **PR Link:** [#{{pullRequest.number}}]({{pullRequest.htmlUrl}})
+**Repository:** {{repository.fullName}}
+**PR:** [#{{pullRequest.number}}]({{pullRequest.htmlUrl}}) - {{pullRequest.title}}

src/main/resources/templates/en/pull_request.opened.template

@@ -1,5 +1,3 @@
 🟢 **New Pull Request Opened!** by **{{pullRequest.user.login}}**
-
-📦 **Repository:** {{repository.fullName}}
-🔖 **Title:** {{pullRequest.title}}
-🔗 **PR Link:** [#{{pullRequest.number}}]({{pullRequest.htmlUrl}})
+**Repository:** {{repository.fullName}}
+**PR:** [#{{pullRequest.number}}]({{pullRequest.htmlUrl}}) - {{pullRequest.title}}