Better Reports 1/2

[worldofjoni]

Completely overhauled reports (#160), part one of two:

• ergonomic HTML mails with much more information
• better mail subject
• mail thread grouping for reports of the same image

Still missing (version two):

• one-click delete/verify of image

Example

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 96.29630% with 2 lines in your changes missing coverage. Please review.

Project coverage is 92.56%. Comparing base (07fbecf) to head (97ff8b7). Report is 1 commits behind head on main.

Files	Patch %	Lines
backend/src/layer/data/mail/mail_sender.rs	92.30%	1 Missing :warning:
...end/src/layer/logic/api_command/command_handler.rs	93.75%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #164 +/- ## ========================================== - Coverage 92.90% 92.56% -0.34% ========================================== Files 39 39 Lines 1662 1615 -47 ========================================== - Hits 1544 1495 -49 - Misses 118 120 +2 ```

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