Update GitHub Issue Form template (home-assistant#46791)

This PR fixes the bug report template!

Details: https://gh-community.github.io/issue-template-feedback/changes/#what-do-i-need-to-do

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -2,8 +2,8 @@ name: Report an issue with Home Assistant Core
 about: Report an issue with Home Assistant Core.
 title: ""
 issue_body: true
-inputs:
-  - type: description
+body:
+  - type: markdown
     attributes:
       value: |
         This issue form is for reporting bugs only!
@@ -12,68 +12,67 @@ inputs:
 
         [fr]: https://community.home-assistant.io/c/feature-requests
   - type: textarea
+    validations:
+      required: true
     attributes:
       label: The problem
-      required: true
       description: >-
         Describe the issue you are experiencing here to communicate to the
         maintainers. Tell us what you were trying to do and what happened.
 
         Provide a clear and concise description of what the problem is.
-  - type: description
+  - type: markdown
     attributes:
       value: |
         ## Environment
   - type: input
+    validations:
+      required: true
     attributes:
       label: What is version of Home Assistant Core has the issue?
-      required: true
       placeholder: core-
       description: >
         Can be found in the Configuration panel -> Info.
   - type: input
     attributes:
       label: What was the last working version of Home Assistant Core?
-      required: false
       placeholder: core-
       description: >
         If known, otherwise leave blank.
   - type: dropdown
+    validations:
+      required: true
     attributes:
       label: What type of installation are you running?
-      required: true
       description: >
         If you don't know, you can find it in: Configuration panel -> Info.
-      choices:
+      options:
         - Home Assistant OS
         - Home Assistant Container
         - Home Assistant Supervised
         - Home Assistant Core
   - type: input
     attributes:
       label: Integration causing the issue
-      required: false
       description: >
         The name of the integration, for example, Automation or Philips Hue.
   - type: input
     attributes:
       label: Link to integration documentation on our website
-      required: false
       placeholder: "https://www.home-assistant.io/integrations/..."
       description: |
         Providing a link [to the documentation][docs] help us categorizing the
         issue, while providing a useful reference at the same time.
 
         [docs]: https://www.home-assistant.io/integrations
 
-  - type: description
+  - type: markdown
     attributes:
       value: |
         # Details
   - type: textarea
     attributes:
       label: Example YAML snippet
-      required: false
       description: |
         If this issue has an example piece of YAML that can help reproducing this problem, please provide.
         This can be an piece of YAML from, e.g., an automation, script, scene or configuration.
@@ -86,17 +85,16 @@ inputs:
     attributes:
       label: Anything in the logs that might be useful for us?
       description: For example, error message, or stack traces.
-      required: false
       value: |
         ```txt
         # Put your logs below this line
 
         ```
-  - type: description
+  - type: markdown
     attributes:
       value: |
         ## Additional information
-  - type: description
+  - type: markdown
     attributes:
       value: >
         If you have any additional information for us, use the field below.