Rework on the dashboard

[samuelmanzanera]

Description

Fix the dashboard metrics aggregation and plotting.

Fixes #455

Type of change

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

By running transactions the graphs should be updated with up/down lines.

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

[apoorv-2204]

%{}
|>Map.put(..,..);
|>Map.put(...,...);

??

[samuelmanzanera]

Explicitness is better in my opinion.
Map.put is nice when you want to update a map but to create it, this form seems better.

[apoorv-2204]

Wow!

[apoorv-2204]

Can we have complete granfana telemetry ?

[samuelmanzanera]

This should be managed separately.