Flows: Ability to view summary of flows for all datasets of the account

[zaychenko-sergei]

Currently, we've implemented viewing flows of each particular dataset, see #233 .

As datasets form a hierarchy, and updates in upstream datasets trigger updates of the downstream datasets, it is very incovenient to observe what is happening for each dataset individually.

Make a new page that is very similar to Dataset Flows page, but:

• shows summary table / tiles for all datasets associated with the user
• additionally, has a column with a name/link to the dataset, and allows filtering by dataset
• no Update Now action menu, as it's not pointing to a single dataset
• Pause/Resume All Updates would mean pausing configurations of all account's datasets

Try to reuse as much internal components from #233 as technically feasible, generalize them more if necessary.

The page might be placed to one of the profile tabs, i.e. to the right of the Datasets tab:

Note: the related API ticket is kamu-data/kamu-cli#551

[dmitriy-borzenko]

We need to change or add the following:

• Add a new API that will pause/resume all flows for the current account

• Add a new API that returns all flows for the current account

• Add a new API that will filter all flows by dataset name

• Make the page look like a Flows tab for the dataset

• Fixed additional menu (change "Pause dataset flows" to "Pause account flows")
  

• Leave the tile-widget unchanged

• Add a column with a name/link to the dataset and allows filtering by dataset