feat: add option to use S3 for reports and results

[Shelex]

Demo: https://cyborg-s3.shelex.dev/
Token: 12345

Added

• split data file into separate fs for storage and pw for generating reports
• common interface that is required to work with storage and apply to fs
• added error handling for api routes
• added loading for results/reports table as it may take some time to fetch with external storage option
• added loading for deleting results/reports as it may take some time with external storage option
• storage is configured with env variable DATA_STORAGE. If it is "s3" - it will use s3 client, otherwise fallback to "fs".
• s3 storage implementation
• use batches for reading and writing multiple files into s3 storage
• move sorting reports and results on route level to work with s3 data as well

[Xotabu4]

If you can update docs with how to configure this - i can merge this PR

[Shelex]

If you can update docs with how to configure this - i can merge this PR

Please check updated readme documentation in fork: github.com/Shelex/playwright-reports-server/feat/useDataStorageS3

• added table of contents
• added "getting started" section which aggregates installation, setup and running service locally
• added sections how to enable s3 storage
• added section how to use docker image
• fixed path for local fs folder (now we do not use /public to serve reports)