Fix discussion templates (#13292)

* Fix yaml spacing for discussion templates

* Remove browser question from detectors

.github/DISCUSSION_TEMPLATE/detector-support.yml

@@ -1,7 +1,7 @@
 title: "[Detector Support]: "
 labels: ["support", "triage"]
 body:
- - type: markdown
+  - type: markdown
     attributes:
       value: |
         Use this form for support or questions related to Frigate's object detectors.
@@ -24,12 +24,6 @@ body:
       description: Visible on the System page in the Web UI. Please include the full version including the build identifier (eg. 0.14.0-ea36ds1)
     validations:
       required: true
-  - type: input
-    attributes:
-      label: What browser(s) are you using?
-      placeholder: Google Chrome 88.0.4324.150
-      description: >
-        Provide the full name and don't forget to add the version!
   - type: textarea
     id: config
     attributes: