Update GitHub Issue and Pull Request templates

[GedasGa]

Platforms affected

Motivation and Context

Update GitHub Issues and Pull Request templates.

Description

• Improve wording
• Fix grammar mistakes
• Update Pull Request checklist
• Remove unnecessary details

Checklist

• I've run the tests to see all new and existing tests pass
• I added automated test coverage as appropriate for this change
• Commit is prefixed with (platform) if this change only applies to one platform (e.g. (android))
• If this Pull Request resolves an issue, I linked to the issue in the text above (and used the correct keyword to close issues using keywords)
• I've updated the documentation if necessary

[codecov-io]

Codecov Report

Merging #60 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff          @@
##           master    #60   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files          14     14           
  Lines         569    569           
=====================================
  Hits          569    569

---

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Δ = absolute <relative> (impact), ø = not affected, ? = missing data
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[codecov-io]

Codecov Report

Merging #60 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff          @@
##           master    #60   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files          14     14           
  Lines         569    569           
=====================================
  Hits          569    569

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 9bf4945...c915ee2. Read the comment docs.

[GedasGa]

@janpio

[janpio]

Nice!

Apache Cordova has standardized GitHub templates for all repositories: https://github.com/apache/cordova-contribute/blob/master/github-templates.md So best please open a PR over there with the same changes so we can discuss the details. Most of this is good, some of it maybe not, some should probably be discussed a bit further.

[GedasGa]

Ok, I'll do that.