Feat/better stats message

[daniel-hauser]

This pull request focuses on refactoring and improving the messages and storage modules by introducing a new saveStats module, updating test snapshots, and enhancing transaction summaries to include details about foreign transactions.
The most important changes include the creation of the saveStats module, modifications to the messages module, and updates to the storage implementations.

Refactoring and Enhancements:

• New saveStats Module:

  • Introduced createSaveStats and statsString functions to handle the creation and formatting of save statistics. (src/saveStats.ts)

• Modifications to messages Module:

  • Updated getSummaryMessages to include foreign currency transactions in the summary. (src/messages.ts)
  • Removed the saved function and moved related logic to the saveStats module. (src/messages.ts)

• Updates to Storage Implementations:

  • Refactored AzureDataExplorerStorage and BuxferStorage to use the new createSaveStats function. (src/storage/azure-data-explorer.ts, src/storage/buxfer.ts) [1] [2]

Test Updates:

• Snapshot Updates:

  • Adjusted test snapshots to reflect the changes in transaction summaries and save statistics. (src/__snapshots__/messages.test.ts.snap) [1] [2] [3]

• Test Refactoring:

  • Refactored tests in messages.test.ts to use the new createSaveStats function and updated the test cases accordingly. (src/messages.test.ts) [1] [2] [3] [4] [5] [6] [7] [8]

Code Cleanup:

• Removed Unused Imports:
  • Cleaned up unused imports in various files to improve code readability. (src/storage/azure-data-explorer.ts, src/storage/buxfer.ts, src/storage/index.ts) [1] [2] [3]