Increase timeouts even more to prevent Windows flake,

fix a typo in Signature.ipynb notebook

Author: krassowski

atest/05_Features/Completion.robot

@@ -66,7 +66,7 @@ Triggers Completer On Dot
     Wait Until Fully Initialized
     Press Keys    None    .
     Wait Until Keyword Succeeds  10x   0.5s   Cell Editor Should Equal  2   list.
-    Wait Until Page Contains Element    ${COMPLETER_BOX}    timeout=25s
+    Wait Until Page Contains Element    ${COMPLETER_BOX}    timeout=35s
     Completer Should Suggest    append
     [Teardown]    Clean Up After Working With File    Completion.ipynb
 
@@ -91,4 +91,4 @@ Completer Should Not Suggest
 
 Trigger Completer
     Press Keys    None    TAB
-    Wait Until Page Contains Element    ${COMPLETER_BOX}    timeout=25s
+    Wait Until Page Contains Element    ${COMPLETER_BOX}    timeout=35s

atest/Keywords.robot

@@ -78,7 +78,9 @@ Ensure All Kernels Are Shut Down
     Enter Command Name    Shut Down All Kernels
     ${els} =    Get WebElements    ${CMD PALETTE ITEM ACTIVE}
     Run Keyword If    ${els.__len__()}    Click Element    ${CMD PALETTE ITEM ACTIVE}
-    Run Keyword If    ${els.__len__()}    Click Element    css:.jp-mod-accept.jp-mod-warn
+    ${accept} =   Set Variable    css:.jp-mod-accept.jp-mod-warn
+    Run Keyword If    ${els.__len__()}    Wait Until Page Contains Element    ${accept}
+    Run Keyword If    ${els.__len__()}    Click Element    ${accept}
 
 Open Command Palette
     Press Keys    id:main    ${ACCEL}+SHIFT+c
@@ -196,4 +198,4 @@ Enter Cell Editor
     Wait Until Page Contains Element    css:.jp-CodeCell:nth-child(${cell_nr}) .CodeMirror-focused
 
 Wait Until Fully Initialized
-    Wait Until Element Contains    ${STATUSBAR}    Fully initialized    timeout=30s
+    Wait Until Element Contains    ${STATUSBAR}    Fully initialized    timeout=35s

atest/examples/Signature.ipynb

@@ -13,7 +13,7 @@
    "source": [
     "def abc(x=1):\n",
     "    \"\"\"Important docstring of abc()\"\"\"\n",
-    "    pas\n",
+    "    pass\n",
     "\n",
     "\n",
     "abc"