Remove custom_ from argument name

Author: lugi0

src/JupyterLibrary/clients/jupyterlab/Shell.robot

@@ -22,10 +22,10 @@ Open JupyterLab
     Tag With JupyterLab Metadata    ${pageinfo tags}    clear=${clear}
 
 Wait for JupyterLab Splash Screen
-    [Arguments]    ${custom_timeout}=10s
+    [Arguments]    ${timeout}=10s
     [Documentation]    Wait for the JupyterLab splash animation
-    Wait Until Page Contains Element    css:#${JLAB ID SPLASH}    timeout=${custom_timeout}
-    Wait Until Page Does Not Contain Element    css:#${JLAB ID SPLASH}    timeout=${custom_timeout}
+    Wait Until Page Contains Element    css:#${JLAB ID SPLASH}    timeout=${timeout}
+    Wait Until Page Does Not Contain Element    css:#${JLAB ID SPLASH}    timeout=${timeout}
     Sleep    2s
 
 Click JupyterLab Menu