Gh#2726 callhome stats export

[MarcelGeo]

Resolves https://github.com/MerginMaps/server-private/issues/2726

BE Impl 🔨

• update send statistics celery to store data to new introduced table MerginStatistics
• New endpoint for getting csv from table between dates in format 2024-01-01

FE Impl 🔨

• new dialog to settings template with ability to export data

[coveralls]

Pull Request Test Coverage Report for Build 12950246432

Details

• 119 of 119 (100.0%) changed or added relevant lines in 5 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.1%) to 93.181%

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Totals
Change from base Build 12884819081:	0.1%
Covered Lines:	6655
Relevant Lines:	7142

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💛 - Coveralls