feat: add `issue` template

.github/ISSUE_TEMPLATE/core_problem.md

@@ -0,0 +1,28 @@
+---
+name: Core Development Issue
+about: Something that doesn't directly relate to the platform
+---
+
+## Enviroment
+
+> development enviroment info.
+
+- dioxus version:
+- dioxus feature: ["web", "desktop", ..."]
+- rust version:
+
+## Error Info
+
+> verbose error information.
+
+```
+
+```
+
+## Bad Code
+
+> the code where error occurred.
+
+```rust
+
+```