Modify bug report template for versioning and labels

Removed "Bug:" from auto-fill for titles, to reduce visual noise of issue tracker.

Swapped "bug" label for "Bug" type.

.github/DISCUSSION_TEMPLATE/icon-requests.yml

@@ -1,4 +1,4 @@
-title: "[Icon Name] Icon"
+title: "Icon Request: "
 labels:
   - "icon request"
   - "new icon"
@@ -57,4 +57,4 @@ body:
         - label: "I searched existing Discussions/Issues to avoid duplicates"
           required: true
         - label: "I understand how icon requests work and what makes one more likely to be accepted"
-          required: true
+          required: true

.github/ISSUE_TEMPLATE/100_web_bug_report.yml

@@ -1,7 +1,7 @@
 name: Bug report (Web - CSS - JS)
 description: Report a bug which occurs in a web application
-labels: ["needs-triage"]
-type: bug
+title: "Bug: "
+labels: ["bug", "needs-triage"]
 body:
   - type: markdown
     attributes:
@@ -34,7 +34,7 @@ body:
     attributes:
       label: Font Awesome version
       description: Provide the version of Font Awesome affected by this bug
-      placeholder: v7.1.0
+      placeholder: v6.0.0
     validations:
       required: true
   - type: dropdown