Improve issue template (#1319)

* Improve issue template

- Add a CSS section(so I don't have to see those comments about posting CSS etc).
- Make it into more sections and separate them.
- Add notes to each section.

* Apply feedback

* Add restart/profile note

* tweaks

Co-authored-by: narcolepticinsomniac <therealdoctorgonzo@gmail.com>

.github/ISSUE_TEMPLATE.md

@@ -1,9 +0,0 @@
-* **Browser**:
-* **Operating System**:
-* **Stylus Version**:
-* **Screenshot**:
-
-<!--
-Please make sure you checked that your issue wasn't already addressed.
-If the issue persists, please help us identifying the cause by providing the above details.
--->

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,48 @@
+---
+name: Bug Report
+about: Create a report about a bug you experienced while using Stylus.
+title: "[Bug] Replace with title"
+assignees: ''
+---
+
+<!--
+  ⚠⚠ Do not delete this issue template! ⚠⚠
+  Reported issues must use this template and have all the necessary information provided.
+  Incomplete reports are likely to be ignored and closed.
+-->
+
+<!--
+  Thank you for taking the time to create a report about a bug.
+  Ensure that there are no other existing reports for this bug.
+  Please check if the issue is resolved after a restart of the browser.
+  Additionally, you should check if the issue persists in a new browser profile.
+  Remember to fill out every section on this report and remove any that are not needed.
+  Finally, place a brief description in the title of this report.
+-->
+
+# Bug Report
+
+### Bug Description
+<!-- Provide a clear and concise description, which will allow us to properly troubleshoot this bug. -->
+
+### Screenshots
+<!-- If applicable, add screenshots to help explain this bug. -->
+
+### CSS Code
+<!--
+    If the bug is related to (user)CSS or the editor, 
+    please post the code (with a service like pastebin) in this bug report. 
+-->
+
+### System Information
+<!--
+  Specify the browser name and version as well as the Stylus version you are using.
+  Please do an online search for help if you are not familiar with how to get this information.
+-->
+
+- OS: <!-- e.g. Windows, macOS, Linux -->
+- Browser: <!-- e.g. Chrome 91, Firefox 90, Edge 91, Safari 14 -->
+- Stylus Version: <!-- e.g. 1.5.21 -->
+
+### Additional Context
+<!-- Provide any additional information about this bug. -->