PLAYNEXT-1989 Add app and platform name in email subject for support

[mutaben]

Description

We were asked to specify app and platform name in the subject of the generate email for support here.

Changes Made

• Add app and platform name in email subject

Checklist

• I have followed the project's style guidelines.
• I have performed a self-review of my own changes.
• I have made corresponding changes to the documentation.
• My changes do not generate new warnings.
• I have tested my changes and I am confident that it works as expected and doesn't introduce any known regressions.
• I have reviewed the contribution guidelines.