#5: attempt fix for windows/ff spinner

Author: bollwyvl

src/JupyterLibrary/clients/jupyterlab/Launcher.robot

@@ -8,7 +8,7 @@ Launch a new JupyterLab Document
     ...   Notebook or Console with the given ``kernel``, and wait until the loading
     ...   animation is complete.
     Click Element    xpath:${JLAB XP CARD}\[@title='${kernel}'][@data-category='${category}']
-    Run Keyword And Ignore Error    timeout=0.1s  Wait Until Page Contains Element    css:${JLAB CSS SPINNER}
-    Wait Until Page Does Not Contain Element    css:${JLAB CSS SPINNER}
+    Run Keyword And Ignore Error    timeout=2s  Wait Until Page Contains Element    css:${JLAB CSS SPINNER}
+    Run Keyword And Ignore Error    timeout=5s  Wait Until Page Does Not Contain Element    css:${JLAB CSS SPINNER}
     Wait Until Page Contains Element    css:${JLAB CSS ACTIVE INPUT}
-    Sleep    0.1s
+    Sleep    0.5s