Enable saving of a dashboard/filter for productivity analytics & cycle analytics

Problem to solve

With our current functionality, users cannot change graphs, but can select a group/project, etc. This doesn't get saved, but it should since groups/projects that people care about are unlikely to change. (https://gitlab.slack.com/archives/CCM3BUT7T/p1562161710014100?thread_ts=1560884332.005900&cid=CCM3BUT7T)

Intended users

Further details

Proposal

Permissions and Security

Documentation

Testing

What does success look like, and how can we measure that?

What is the type of buyer?

Links / references

Solution

• If the current filter isn't saved, show a browser-native alert: "The current filter isn't saved and will be lost by loading a template. Do you want to proceed?"
• Let's use a toast message (if we can) for indicating when a template is successfully saved. Message should be: "Template saved". The name input field should be cleared on a successful save and the new template added to the list in the dropdown.