Reformat issue forms

Using a field's description makes the important preamble too small and
easy to skim over.

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -8,13 +8,13 @@ body:
   attributes:
     value: |
       > :warning: Our issue tracker is not for how-to or configuration questions. Please post those on [our Discord](https://doomemacs.org/discord) or [Discourse](https://discourse.doomemacs.org) instead.
+
+      **Before you proceed...**
+
+      We depend on you to ensure your issue hasn't already been addressed, isn't covered by documentation, and isn't caused by personal configuration. To help us rule out these possibilities please follow these guidelines:
+      <br />
 - type: checkboxes
   attributes:
-    label: Before you proceed...
-    description: |
-      We depend on you to ensure your issue hasn't already been addressed, isn't covered by documentation, and isn't caused by personal configuration.
-
-      These guidelines will help you rule out these possibilities:
     options:
       - label: I have searched [the FAQ](https://doomemacs.org/docs/faq.org) and [the documentation](https://doomemacs.org/docs/getting_started.org) for solutions.
         required: true

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -4,13 +4,15 @@ description: Propose a new idea or feature
 title: "{{{ Briefly summarize your request here }}}"
 labels: ["1. request", "needs-triage"]
 body:
+- type: markdown
+  attributes:
+    value: |
+      **Before you proceed...**
+
+      To rule out the possibility that your request has already been made (or fulfilled), please follow these guidelines:
+      <br/>
 - type: checkboxes
   attributes:
-    label: Before you proceed...
-    description: |
-      We depend on you to ensure your issue hasn't already been addressed elsewhere, isn't resolvable by reading existing documentation, and isn't caused by personal configuration.
-
-      These guidelines will help you rule out these possibilities:
     options:
       - label: I have read the [contributing guidelines](https://discourse.doomemacs.org/how2contribute).
         required: true