Add contract calls and transaction charts over time (weekly / monthly) in the explorer

[paulo60pg]

💡 The current metric displays the number of transactions over the last 100 blocks, but it lacks informativeness and often shows "0," giving the impression that the chain is inactive.

This is neither useful for users nor encouraging for the project's image.

A feature to display weekly and monthly bar charts of contract calls and transactions over time would provide much more meaningful insights. Metrics like these are essential for crypto projects as they offer clarity and transparency about network activity.

💡 The solution could involve:

Data aggregation: Collect data about contract calls and transactions over time, grouped by week and month, with a toggle.

Visualization: Use a bar chart format to represent the data, displaying activity trends clearly.

Alternatives to consider: Include tooltips with additional details for each bar (e.g., block height ranges, specific contract call types).

💡 Examples from other crypto projects demonstrate how valuable and engaging transaction charts can be in fostering user trust and promoting the network’s activity. Linking the feature to existing explorer metrics would enhance usability and provide a smoother experience.

A good example, even if I prefer a bar chart for this type of data: