Is your feature request related to a problem? Please describe.

When using azureblob one has to specify the AZURE_STORAGE_ACCOUNT env or specify storage_account in the connection url even if the AZURE_STORAGE_CONNECTION_STRING env variable is set.
This shouldn't be necessary, as the connection-string already contains the account name.

Describe the solution you'd like

The account name should be taken/parsed out of the connection string.

DefaultEndpointsProtocol=https;AccountName=some-account;AccountKey=very-secure;EndpointSuffix=core.windows.net => accountName=some-account

Describe alternatives you've considered

The env var AZURE_STORAGE_ACCOUNT could also be set every time when using a connection string.