[Tock Studio] Angular version upgrade (v14 to v17)

[rkuffer]

Problems encountered:

• Temporary workaround must have been added for https://github.com/akveo/nebular/issues/3258
• Temporary workaround must have been added for https://github.com/akveo/nebular/issues/3241
• The display of the Sankey graph is no longer working (angular-google-charts dependency not maintained anymore and incompatible with Angular 15) and has therefore been disabled. A complete replacement of the Cytoscape graphs by their Apache Echarts equivalent is planned soon (including a Sankey display). Cf https://github.com/theopenconversationkit/tock/issues/1714
• After update, a last moderate security alert remains for Boostrap 4. A version upgrade to Bootstrap 5 is planned