Modified dashboard has link that is too big

[klpx]

How to reproduce:

• create dashboard with multiple charts
• use "Sync Tags" across them
• save dashboard, now it has short link
• change any tag

Expected result:
URL is short enough to share (either it is shortened or it has few additional query params)

Actual result:
URL size scales with the size of the dashboard:

• it contains names of every chart on the dashboard
• and parameters of every chart as well

[flyingmutant]

We have plans to have a built-in URL shortener at some point. We already kind of do, with server-saved dashboards, but the interface is not optimized for the "just URL shortener" use case.