Update issue forms

Removed issue-body in bugreport.yaml and featurerequest.yaml
Added config file: can't create a blank issue and added contact link to ultimaker community.

.github/ISSUE_TEMPLATE/bugreport.yaml

@@ -1,7 +1,6 @@
 name: Bug Report
 description: Create a report to help us fix issues.
 labels: "Type: Bug"
-issue_body: true
 body:
 - type: markdown
   attributes:

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,5 @@
+blank_issues_enabled: false
+contact_links:
+  - name: Have questions or need support?
+    url: https://community.ultimaker.com/
+    about: Please get in touch on our Ultimaker Community Forum!

.github/ISSUE_TEMPLATE/featurerequest.yaml

@@ -1,7 +1,6 @@
 name: Feature Request
 description: Suggest an idea for this project.
 labels: "Type: New Feature"
-issue_body: true
 body:
 - type: markdown
   attributes: