Add common pitfalls to documentation FAQ section

Add to this list or create another: https://doc-snapshots.qt.io/qtsaferenderer/qtsr-faq.html

Add steps for QSR resource file usage with animations: This is a bit tricky, so most likely there could be customers asking for help since the steps are QSR specific.

• If you modify the existing safety application and its animations, you need to update the resource files
  • If the resource file is in use, for example:
    • static QSafeLayoutResourceReader layout("/layoutData/MainForm/MainForm.ui.srl");
  • Then you need to clear the resource file manually by removing the file references
    • One fast way to do it is to click the right mouse button on the / mark under the resource file and select remove the prefix
  • Rebuild the app and add the layout data folder to the resource file.
    • Otherwise, there will be errors about the old resource files missing
    • But you cannot run the app directly, since you will get an exception:
      • terminate called after throwing an instance of 'SafeRenderer::QSafeResource::ResourceException'
  • And then you need to add the layout data folder to the resource file
    • and if you would try to run the app, you still would get the exception.
  • Then you need to build the app and run it
• The workaround for faster prototyping is to use the file reader and just point it to the correct folder:
  • static QSafeLayoutFileReader layout("D:/QtQSR1.2/X_RC3_tests/TC_R2.3.4_Host_Win_10/indicators_R2345/layoutData/MainForm/MainForm.ui.srl");