Update issue templates to new format (#3784)

* Update issue templates

* Create config.yml

* Delete bug_report.md

* Delete ISSUE_TEMPLATE.md

Co-authored-by: Madis Otenurm <Madis0@users.noreply.github.com>

.github/ISSUE_TEMPLATE.md

@@ -1,9 +0,0 @@
-<--
-
-Do not open issue here.
-
-The official issue tracker for uBlock Origin is at:
-
-https://github.com/uBlockOrigin/uBlock-issues/issues
-
--->

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,17 @@
+blank_issues_enabled: false
+contact_links:
+  - name: Bug report
+    url: https://github.com/uBlockOrigin/uBlock-issues
+    about: Bugs and feature requests are now in a separate repository
+  - name: Questions and support
+    url: https://old.reddit.com/r/uBlockOrigin/
+    about: Answers to questions and other kinds of help support is provided on the subreddit r/uBlockOrigin
+  - name: Filter issues/website is broken
+    url: https://github.com/uBlockOrigin/uAssets/issues
+    about: Please report any issues with specific websites to uAssets issue tracker
+  - name: New filter list
+    url: https://github.com/uBlockOrigin/uBlock-issues/blob/master/README.md#ublock-issues
+    about: Opening issues for adding new filter lists is now disallowed and such issues will be declined and closed
+  - name: Issues with Firefox 56 or older
+    url: https://github.com/gorhill/uBlock-for-firefox-legacy/issues
+    about: If you are using uBlock Origin for Firefox legacy, please write the issues to its issue tracker