Revert "workflows: Point to https://www.klipper3d.org/Contact"

This reverts commit d14015111e.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

.github/ISSUE_TEMPLATE/config.yml

@@ -1,7 +1,7 @@
 blank_issues_enabled: false
 contact_links:
   - name: Directions
-    url: https://www.klipper3d.org/Contact
+    url: https://www.klipper3d.org/Contact.html
     about: Have a question? Need help? Start here.
   - name: Klipper Forum
     url: https://community.klipper3d.org/

.github/ISSUE_TEMPLATE/custom.md

@@ -3,4 +3,4 @@ name: Create a Klipper github issue
 about: Working on improving Klipper? Provide an update on your work here.
 ---
 <!-- Directions have recently changed. Do not open this ticket without
- following the directions at: https://www.klipper3d.org/Contact -->
+ following the directions at: https://www.klipper3d.org/Contact.html -->