Added Rydberg density plot

[shubhusion]

Fixes #876

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 89.91%. Comparing base (aada63a) to head (c374447).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #974 +/- ## ======================================= Coverage 89.91% 89.91% ======================================= Files 110 110 Lines 8129 8129 ======================================= Hits 7309 7309 Misses 820 820 ```

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[AbdullahKazi500]

is this plot part of the bloqade package I have not seen it @shubhusion any context from where this came from

[shubhusion]

is this plot part of the bloqade package I have not seen it @shubhusion any context from where this came from

I just made it using rydberg density formula.

@Roger-luo has mentioned in the issue that basic definition and plots are not available for rydberg constant. So i plotted this graph using the general formula of rydberg constant.

Maybe I am wrong here.

[AbdullahKazi500]

@shubhusion you need plots using bloqade not any external packages if you make use of external package that pr would be flaaged

[shubhusion]

@shubhusion you need plots using bloqade not any external packages if you make use of external package that pr would be flaaged

Okay