Add issue template

.github/ISSUE_TEMPLATE/bug.yml

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+name: "🐞 Report a Bug"
+description: Create an issue if something does not work as expected.
+labels: ["Type/Bug"]
+body:
+  - type: textarea
+    id: background
+    attributes:
+      label: Description
+      description: Please share a clear and concise description of the problem.
+      placeholder: Description
+  - type: textarea
+    id: steps
+    attributes:
+      label: Steps to Reproduce
+      description: List the steps you followed when you encountered the issue. Provide sample source code to reproduce the issue where applicable.
+    validations:
+      required: true
+  - type: input
+    id: version
+    attributes:
+      label: Version
+      description: Enter product/component version.
+    validations:
+      required: true
+  - type: textarea
+    id: environment
+    attributes:
+      label: Environment Details (with versions)
+      description: Mention the environment details (OS, Client, etc.) that the product is running on.
+    validations:
+      required: false

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: false
+contact_links:
+- name: '📚 Documentation Issue'
+  about: Request a new article, missing topic, or report an issue if a topic is incorrect in the current documentation.
+  url: https://github.com/ballerina-platform/ballerina-dev-website/issues/new/choose
+- name: General Question
+  url: https://stackoverflow.com/questions/tagged/ballerina
+  about: "If you have a question then please ask on Stack Overflow using the #ballerina tag."
+- name: Chat on Ballerina Discord Channel
+  url: https://discord.gg/ballerinalang
+  about: "Chat about anything else with the community."

.github/ISSUE_TEMPLATE/improvement.yml

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+name: "🚀 Improvement Request"
+description: Suggest an improvement to the product.
+labels: ["Type/Improvement"]
+body:
+  - type: textarea
+    id: limitation
+    attributes:
+      label: Current Limitation
+      description: Describe the the current limitation.
+    validations:
+      required: true
+  - type: textarea
+    id: suggestion
+    attributes:
+      label: Suggested Improvement
+      description: Describe the the improvement you suggest.
+    validations:
+      required: true
+  - type: input
+    id: version
+    attributes:
+      label: Version
+      description: Enter component version.
+    validations:
+      required: false

.github/ISSUE_TEMPLATE/new-feature.yml

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+name: "💡 New Feature Request"
+description: Suggest new functionality and features for the product.
+labels: ["Type/NewFeature"]
+body:
+  - type: textarea
+    id: problem
+    attributes:
+      label: Problem
+      description: What is the problem this feature will solve?
+    validations:
+      required: true
+  - type: textarea
+    id: solution
+    attributes:
+      label: Proposed Solution
+      description: Describe the solution you'd like to have.
+    validations:
+      required: true
+  - type: textarea
+    id: alternatives
+    attributes:
+      label: Alternatives
+      description: Describe any alternatives have you considered
+    validations:
+      required: false
+  - type: input
+    id: version
+    attributes:
+      label: Version
+      description: Enter product/component version.
+    validations:
+      required: false

.github/ISSUE_TEMPLATE/task.yml

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+name: "✍️ Create a Task"
+description: Create a new task.
+labels: ["Type/Task"]
+body:
+  - type: textarea
+    id: description
+    attributes:
+      label: Description
+      description: A clear description of what needs to be done.
+    validations:
+      required: true
+  - type: input
+    id: version
+    attributes:
+      label: Version
+      description: Enter product/component version.
+    validations:
+      required: false