use 'contact links' config feature to replace issue templates that link elsewhere

.github/ISSUE_TEMPLATE/4_Support_question.md

@@ -1,9 +0,0 @@
----
-name: ⁉️ Support Question
-about: Having trouble with Umbraco? -> https://our.umbraco.com
----
-
-This issue tracker is NOT meant for support questions. If you have a question,
-please join us on the forum at https://our.umbraco.com.
-
-Thanks!

.github/ISSUE_TEMPLATE/5_Documentation_issue.md

@@ -1,9 +0,0 @@
----
-name: 📖 Documentation Issue
-about: See https://github.com/umbraco/UmbracoDocs/issues for documentation issues
----
-
-The Umbraco documentation has its own dedicated repository. Please open your
-documentation-related issue at https://github.com/umbraco/UmbracoDocs/issues
-
-Thanks!

.github/ISSUE_TEMPLATE/6_Security_issue.md

@@ -1,31 +0,0 @@
----
-name: 🔐 Security Issue
-about: Discovered a Security Issue in Umbraco?
----
-
-⚠️ PLEASE DON'T DISCLOSE SECURITY-RELATED ISSUES PUBLICLY, SEE BELOW.
-
-If you have found a security issue in Umbraco, please send the details to
-security@umbraco.com and don't disclose it publicly until we can provide a fix for
-it. If you wish, we'll credit you for finding verified issues, when we release
-the patched version.
-
-❗ Please read more about how to report security issues on https://umbraco.com/security
-
-A note on "Self XSS"
---------------------
-
-Umbraco is a CMS, that allows users to edit content on a website. As such,
-all _authenticated users_ can:
-
- - Edit content, and (depending on the field types) insert HTML and CSS in that
-   content, with a variety of allowed attributes.
- - Depending on the user level: Edit template files, and insert C#, HTML, CSS and
-   javascript in so on.
- - Upload files to the site, which will become publicly available.
-
-We see these functionalities as _features_, and not as security issues. Please
-report the mentioned items only if they can be performed by non-authorized
-users, or other exploitable vulnerabilities.
-
-Thanks!

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,11 @@
+blank_issues_enabled: true
+contact_links:
+    - name: ⁉️ Support Question
+      url: https://our.umbraco.com
+      about: This issue tracker is NOT meant for support questions. If you have a question, please join us on the forum.
+    - name: 📖 Documentation Issue
+      url: https://github.com/umbraco/UmbracoDocs/issues
+      about: Documentation issues should be reported on the Umbraco documentation repository.
+    - name: 🔐 Security Issue
+      url: https://umbraco.com/about-us/trust-center/security-and-umbraco/how-to-report-a-vulnerability-in-umbraco/
+      about: Discovered a Security Issue in Umbraco?