github: convert issue templates to forms

.github/ISSUE_TEMPLATE/01-bug-report.yml

@@ -0,0 +1,40 @@
+name: "Bug report"
+description: "Create a report to help us improve"
+title: "[Bug]: "
+labels: ["bug report"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        This is a bug tracker of the Termux app. If you have issues with a package inside the app, then please open an issue at [termux-packages](https://github.com/termux/termux-packages) instead. Use search before you open an issue to check whether your issue has been already reported and perhaps solved.
+
+        Android versions 5.x and 6.x are not supported anymore.
+
+        If you have issues installing packages then please see https://github.com/termux/termux-packages/issues/6726.
+  - type: textarea
+    attributes:
+      label: Problem description
+      description: |
+        A clear and concise description of what the problem is. You may attach the logs, screenshots, screen video recording and whatever else that will help to understand the issue.
+
+        Issues without proper description will be closed without solution.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Steps to reproduce the behavior. Please post all necessary commands that are needed to reproduce the issue.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: What is the expected behavior?
+  - type: textarea
+    attributes:
+      label: System information
+      description: Please provide info about your device
+      value: |
+        * Termux application version:
+        * Android OS version:
+        * Device model:
+    validations:
+      required: true