GH-2886 added handle for fcm testing

[DmitryBespalov]

Handles #2886

Changes proposed in this pull request:

• Adds option to view FCM token outside of production builds

[codecov-commenter]

Codecov Report

Attention: 766 lines in your changes are missing coverage. Please review.

Comparison is base (2b3ddf0) 8.14% compared to head (86d7403) 8.03%. Report is 23 commits behind head on main.

Files	Patch %	Lines
...Connect to Web/Logic/WebConnectionController.swift	0.00%	234 Missing :warning:
...sViewController/TransactionDetailCellBuilder.swift	0.00%	102 Missing :warning:
Multisig/Logic/Models/EIP712Transformer.swift	0.00%	62 Missing :warning:
...cureConfig/Sources/SecureConfig/SecureConfig.swift	0.00%	59 Missing :warning:
... Web/Logic/WebConnectionToSessionTransformer.swift	0.00%	49 Missing :warning:
...ntroller/ReviewSafeTransactionViewController.swift	0.00%	49 Missing :warning:
...Connect to Web/Logic/WebConnectionRepository.swift	0.00%	44 Missing :warning:
...let/UI/SendTransactionToWalletViewController.swift	0.00%	19 Missing :warning:
...isig/Cross-layer/Configuration/Configuration.swift	0.00%	17 Missing :warning:
Multisig/App/SceneDelegate.swift	0.00%	16 Missing :warning:
... and 20 more

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #3371 +/- ## ======================================== - Coverage 8.14% 8.03% -0.11% ======================================== Files 786 788 +2 Lines 43371 43951 +580 ======================================== Hits 3532 3532 - Misses 39839 40419 +580 ```

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