[DEFECT] Indexing error in stacked CashFlow bar plot

Defect Description

Describe the defect

What did you expect to see happen?

I noticed an indexing error in the CashFlowPlot, specifically "Plot 1: Inflows, outflows and Net Cash Flow". In the stacked plot for the negative cash flows, the code is:

    for i, _ in enumerate(cumCashFlow[0:negVar]):
      if i == 0:
        ax1.bar(dfYear['cfYears'], dfCashFlow.iloc[:,i], widthFlowbar, color = compColor[i],
          label = labels.iloc[i,0], edgecolor='white')
      else:
        ax1.bar(dfYear['cfYears'], dfCashFlow.iloc[:,i], widthFlowbar, color = compColor[i],
          bottom = dfCashFlow.iloc[:,0:i-1].sum(axis=1), label = labels.iloc[i,0], edgecolor='white')

If i=1 in the else portion, the bottom argument indexes the cash flow dataframe from 0:0 which does not take into account the i=0 cash flow. This results in a missing portion in the stacked bar plot.

What did you see instead?

Do you have a suggested fix for the development team?

The argument for bottom should be changed to bottom = dfCashFlow.iloc[:,0:i].sum(axis=1)

Describe how to Reproduce Steps to reproduce the behavior:

Screenshots and Input Files Please attach the input file(s) that generate this error. The simpler the input, the faster we can find the issue.

Platform (please complete the following information):

OS: [e.g. iOS]
Version: [e.g. 22]
Dependencies Installation: [CONDA or PIP]

For Change Control Board: Issue Review

This review should occur before any development is performed as a response to this issue.

[x] 1. Is it tagged with a type: defect or task?
[x] 2. Is it tagged with a priority: critical, normal or minor?
[x] 3. If it will impact requirements or requirements tests, is it tagged with requirements?
[x] 4. If it is a defect, can it cause wrong results for users? If so an email needs to be sent to the users.
[x] 5. Is a rationale provided? (Such as explaining why the improvement is needed or why current code is wrong.)

For Change Control Board: Issue Closure

This review should occur when the issue is imminently going to be closed.

[x] 1. If the issue is a defect, is the defect fixed?
[x] 2. If the issue is a defect, is the defect tested for in the regression test system? (If not explain why not.)
[x] 3. If the issue can impact users, has an email to the users group been written (the email should specify if the defect impacts stable or master)?
[x] 4. If the issue is a defect, does it impact the latest release branch? If yes, is there any issue tagged with release (create if needed)?
[x] 5. If the issue is being closed without a pull request, has an explanation of why it is being closed been provided?

idaholab / TEAL