[Housekeeping] Remove checkboxes from bug template (#16650)

I did not realize that they would be editable tasks on the issue. Replaced with a dropdown. Also reordered the versions to be the most likely default options to speed up the reporting process.

Author: samhouts

.github/ISSUE_TEMPLATE/bug-report.yml

@@ -44,37 +44,43 @@ body:
       label: Version with bug
       description: In what version do you see this issue? Run `dotnet workload list` to find your version.
       options:
+        - 7.0.92
+        - 7.0.86
+        - 7.0.81
+        - 7.0.59
         - 7.0.49
         - 7.0.52
         - 7.0.58
-        - 7.0.59
-        - 7.0.81
-        - 7.0.86
-        - 7.0.92
-        - 8.0.0-preview.1.7762
-        - 8.0.0-preview.2.7871
-        - 8.0.0-preview.3.8149
-        - 8.0.0-preview.4.8333
-        - 8.0.0-preview.5.8529
-        - 8.0.0-preview.6.8686
         - 8.0.0-preview.7.8842
+        - 8.0.0-preview.6.8686
+        - 8.0.0-preview.5.8529
+        - 8.0.0-preview.4.8333
+        - 8.0.0-preview.3.8149
+        - 8.0.0-preview.2.7871
+        - 8.0.0-preview.1.7762
         - Unknown/Other
     validations:
       required: true
-  - type: checkboxes
+  - type: dropdown
     id: is-regression
     attributes:
-      label: Is this a regression from previous behavior? In other words, did this work before an update and now does not?
+      label: Is this a regression from previous behavior? 
+      description: In other words, did this work before an update or migration and now does not?
+      multiple: true
       options:
-        - label: Yes, this used to work
-        - label: No, this is something new
-        - label: Not sure, did not test other versions
+        - Yes, this used to work in .NET MAUI
+        - Yes, this used to work in Xamarin.Forms
+        - No, this is something new
+        - Not sure, did not test other versions
+    validations:
+      required: true
   - type: dropdown
     id: version-that-worked
     attributes:
       label: Last version that worked well
       description: If you answered yes, there a version on which this _did_ work, which one? If no or unknown, please select `Unknown/Other`.  Run `dotnet workload list` to find your version.
       options:
+        - Unknown/Other
         - 6.0
         - 7.0.49
         - 7.0.52
@@ -90,7 +96,6 @@ body:
         - 8.0.0-preview.5.8529
         - 8.0.0-preview.6.8686
         - 8.0.0-preview.7.8842
-        - Unknown/Other
     validations:
       required: true
   - type: dropdown