QmlDesigner: Simplify naming of views

* Curve Editor -> Curves
* 3D Editor -> 3D
* Form Editor -> 2D
* Text Editor -> Text
* Transition Editor -> Transitions

Most view titles are now a single word and all superfluous "Editor"
as part of the title have been removed.
"File System" and "Open Documents" stay as they are.

Task-number: QDS-6325
Change-Id: I8fb6477f9e07c324f76a49796f550a8b8799fedd
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Eike Ziller <eike.ziller@qt.io>
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@qt.io>
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>

src/plugins/qmldesigner/components/curveeditor/curveeditorview.cpp

@@ -69,7 +69,7 @@ bool CurveEditorView::hasWidget() const
 
 WidgetInfo CurveEditorView::widgetInfo()
 {
-    return createWidgetInfo(m_editor, "CurveEditorId", WidgetInfo::BottomPane, 0, tr("Curve Editor"));
+    return createWidgetInfo(m_editor, "CurveEditorId", WidgetInfo::BottomPane, 0, tr("Curves"));
 }
 
 void CurveEditorView::modelAttached(Model *model)

src/plugins/qmldesigner/components/edit3d/edit3dview.cpp

@@ -83,7 +83,7 @@ WidgetInfo Edit3DView::widgetInfo()
     if (!m_edit3DWidget)
         createEdit3DWidget();
 
-    return createWidgetInfo(m_edit3DWidget.data(), "Editor3D", WidgetInfo::CentralPane, 0, tr("3D Editor"), DesignerWidgetFlags::IgnoreErrors);
+    return createWidgetInfo(m_edit3DWidget.data(), "Editor3D", WidgetInfo::CentralPane, 0, tr("3D"), DesignerWidgetFlags::IgnoreErrors);
 }
 
 Edit3DWidget *Edit3DView::edit3DWidget() const

src/plugins/qmldesigner/components/formeditor/formeditorview.cpp

@@ -362,7 +362,7 @@ WidgetInfo FormEditorView::widgetInfo()
     if (!m_formEditorWidget)
         createFormEditorWidget();
 
-    return createWidgetInfo(m_formEditorWidget.data(), "FormEditor", WidgetInfo::CentralPane, 0, tr("Form Editor"), DesignerWidgetFlags::IgnoreErrors);
+    return createWidgetInfo(m_formEditorWidget.data(), "FormEditor", WidgetInfo::CentralPane, 0, tr("2D"), DesignerWidgetFlags::IgnoreErrors);
 }
 
 FormEditorWidget *FormEditorView::formEditorWidget()

src/plugins/qmldesigner/components/texteditor/texteditorview.cpp

@@ -145,7 +145,7 @@ void TextEditorView::nodeReparented(const ModelNode &/*node*/, const NodeAbstrac
 
 WidgetInfo TextEditorView::widgetInfo()
 {
-    return createWidgetInfo(m_widget, "TextEditor", WidgetInfo::CentralPane, 0, tr("Text Editor"), DesignerWidgetFlags::IgnoreErrors);
+    return createWidgetInfo(m_widget, "TextEditor", WidgetInfo::CentralPane, 0, tr("Text"), DesignerWidgetFlags::IgnoreErrors);
 }
 
 void TextEditorView::contextHelp(const Core::IContext::HelpCallback &callback) const

src/plugins/qmldesigner/components/transitioneditor/transitioneditorview.cpp

@@ -326,7 +326,7 @@ WidgetInfo TransitionEditorView::widgetInfo()
                             "TransitionEditor",
                             WidgetInfo::BottomPane,
                             0,
-                            tr("Transition Editor"));
+                            tr("Transitions"));
 }
 
 void TransitionEditorView::openSettingsDialog()