inputmethod: Fix the test

We should account for keyboards that are not full screen (unlike
maliit). It shouldn't make a difference for maliit.

autotests/integration/inputmethod_test.cpp

@@ -154,7 +154,7 @@ void InputMethodTest::testOpenClose()
     Test::render(surface.data(), toplevelConfigureRequestedSpy.last().first().value<QSize>(), Qt::red);
     QVERIFY(frameGeometryChangedSpy.wait());
 
-    QCOMPARE(client->frameGeometry().height(), 1024 - keyboardClient->inputGeometry().height() + 1);
+    QCOMPARE(client->frameGeometry().height(), 1024 - keyboardClient->inputGeometry().height());
 
     // Hide the keyboard
     textInput->hideInputPanel();

src/inputpanelv1client.cpp

@@ -96,7 +96,7 @@ void KWin::InputPanelV1Client::reposition()
 
             panelSize = panelSize.boundedTo(availableArea.size());
 
-            QRect geo(availableArea.topLeft(), panelSize);
+            QRect geo(availableArea.bottomLeft() - QPoint{0, panelSize.height()}, panelSize);
             geo.translate((availableArea.width() - panelSize.width())/2, availableArea.height() - outputArea.height());
             moveResize(geo);
         }   break;