Add git history file overview treemap

[JohT]

🚀 Feature - New git history report with tree map visualizations

• Add Python visualization library plotly
• Add git history file overview treemap
• Use simple git history query enhanced in Python
• Add main and second git author treemap plots
• Add wordcloud to git history
• Add file count per commit distribution chart
• Add most frequent file extension treemap

🛠 Fix

• Fix default query limit 10_000 and use -1 for unlimited. Previously, the default for not limiting data was 10.000 rows. Now, the default is -1 which expresses no limit at all.
• Filter out all git branches except for the selected one. Previously, all feature branches where included in the git data which shouldn't be the case when focussing on one tag or the main branch.