Use issue forms (#1631)

makes the issue template UI nicer than it is right now

related: #1625

.github/ISSUE_TEMPLATE/bug-report.md

@@ -1,14 +0,0 @@
----
-name: Bug Report
-about: File a bug report
-title: ''
-labels: bug
-assignees: ''
-
----
-
-Please describe the observed behavior and how to reproduce it.
-
-In case of a crash please attach the stack trace shown in the console.
-
-Before making a bug report please check if it is a [known bug](https://github.com/PixelGuys/Cubyz/issues?q=is%3Aissue%20state%3Aopen%20label%3Abug) first.

.github/ISSUE_TEMPLATE/bug.yml

@@ -0,0 +1,18 @@
+name: Bug Report
+description: File a bug report
+labels: ["bug"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        A bug is when something works differently than it is expected to.
+        ## Remember to search before filing a new report
+        Please search for this bug in the [issue tracker](https://github.com/PixelGuys/Cubyz/issues?q=is%3Aissue%20state%3Aopen%20label%3Abug), and use a bug report title that
+        would have made your bug report turn up in the search results for your search query.
+  - type: textarea
+    id: repro
+    attributes:
+      label: Steps to Reproduce and Observed Behavior
+      description: Please describe the observed behavior and how to reproduce it. In case of a crash please attach the stack trace shown in the console.
+    validations:
+      required: true

.github/ISSUE_TEMPLATE/feature-request.md

@@ -1,10 +0,0 @@
----
-name: Feature Request
-about: Propose a new gameplay feature
-title: ''
-labels: gameplay, undecided
-assignees: ''
-
----
-
-Please check if the feature aligns with the [Game Design Principles](https://github.com/PixelGuys/Cubyz/blob/master/GAME_DESIGN_PRINCIPLES.md) before making an issue.

.github/ISSUE_TEMPLATE/proposal.yml

@@ -0,0 +1,15 @@
+name: Feature Request
+description: Propose a new gameplay feature
+labels: ["gameplay", "undecided"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Please check if the feature aligns with the [Game Design Principles](https://github.com/PixelGuys/Cubyz/blob/master/GAME_DESIGN_PRINCIPLES.md) before making an issue.
+  - type: textarea
+    id: description
+    attributes:
+      label: Description
+      description: Please describe the proposed feature.
+    validations:
+      required: true