Fix/96 plot in report

[fvitalini]

• correct names in plot colour fill (closes Bar plot not showing properly in Report in version 1.1.0 #96)
• align plot labels to the tables in the report.

[riccardoporreca]

@fvitalini, I think we should be more explicit about what was done here.

The main driver was fixing bug #96.

On top of this, plot labels were changed from Occupational/Private Pension to Occupational/Private Fund in both the app and report, which were aligned. The renaming was probably wanted (@gabrielfoix?), but it does not quite belong to the bugifx and its branch (strictly speaking).

What is definitely missing is mentioning bugfix #96 in NEWS.md, which should rather read as something like

* Fixed missing bar-plot in the PDF report (#6).
* Reviewed plots labels.

Actually, naming probably deserves its own issue, since we are not very consistent between plots, table, text in the report. I opened a dedicated issue #103, we might want to revert the labels change done here and delegate it to it.

[fvitalini]

@fvitalini, I think we should be more explicit about what was done here.

The main driver was fixing bug #96.

On top of this, plot labels were changed from Occupational/Private Pension to Occupational/Private Fund in both the app and report, which were aligned. The renaming was probably wanted (@gabrielfoix?), but it does not quite belong to the bugifx and its branch (strictly speaking).

What is definitely missing is mentioning bugfix #96 in NEWS.md, which should rather read as something like

* Fixed missing bar-plot in the PDF report (#6).
* Reviewed plots labels.

Actually, naming probably deserves its own issue, since we are not very consistent between plots, table, text in the report. I opened a dedicated issue #103, we might want to revert the labels change done here and delegate it to it.

@riccardoporreca In commit 32dadde I have updated the NEWS.md according to your suggestion.

[riccardoporreca]

As clarified with @fvitalini and @gabrielfoix, the pull request also covers, on top of bugfix #96, the renaming the plot legends to make them consistent with the report tables. News.md updated accordingly to be more explicit (dba29da).