Inline reporter detects expected

Fixes a minor bug where you have code before expected for inline approvals

InlineJavaReporter uses tab/spaces

22.3.1

d updated markdown snippets

inline Approvals

https://github.com/approvals/ApprovalTests.Java/blob/master/approvaltests/docs/how_to/InlineApprovals.md

https://github.com/approvals/ApprovalTests.Java/blob/master/approvaltests/docs/explanations/InlineApprovalsWorkflow.md

TestUtils.displayFile fixed on MacOS

as reported in #429

IntellijReporter support for Windows

when installed via Jetbrains Toolbox

IntellijReporter support for Linux

must be installed via toolbox!

Remove deprecated api

Minor breaking changes

Issue #376 made javax.mail optional
Removed deprecated api in JupiterApprovals
Moved TestUtils.displayEmail to EmailOpener.displayEmail

Easy reordering of JSON for consistent approvals

The Problem:

JSON does not define an order to the fields.
This can make approving JSON inconsistent as ApprovalTests requires consistent results.

The Solution:

JsonApprovals.verifyJson(json) now has an overload:
JsonApprovals.verifyJson(json, reorderJson: true)
which will alphabetically sort the JSON in the result.
By default it still does not reorder the JSON.

Extras

You can call the reordering directly with
JsonUtils.reorderFields(json)
This fixes #422

Improvements for IntelliJ reporters when using Jetbrains Toolbox

On Mac, when using Jetbrains Toolbox, we now should detect your IntelliJ installation and launch the idea diff viewer.

Fixes to KDiff3

Added KDiff3 Linux reporter.
Minor breaking changes
KDiff3Reporter has been moved to KDiff3MacReporter, KDiff3WindowsReporter as appropriate.
We also created a generic KDiff3 reporter that will work on all three systems.
Closes issue #412