fix: add more clarity to issue templates

[abanuelo]

Description

When running through on-call, issue triaging, there was a need to enhance the existing issue templates to include:

1. explicit mention of looking through both closed and open issues before filing the bug/feat request
2. adding the exact scenic command to be able to reproduce locally

Issue Link

Checklist

• [X] I have tested the changes locally via pytest and/or other means
• [ ] I have added or updated relevant documentation
• [ ] I have autoformatted the code with black and isort
• [ ] I have added test cases (if applicable)

Additional Notes

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 86.11%. Comparing base (d846a15) to head (b6a4317).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #250 +/- ## ========================================== + Coverage 86.10% 86.11% +0.01% ========================================== Files 144 144 Lines 24984 24984 ========================================== + Hits 21512 21516 +4 + Misses 3472 3468 -4 ```

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