Clean up GUI text (#969)

* Remove all statustip entries in the menu
* Prune text in Preferences
* Fix class labels
* Remove some redundant tooltips
* Improve some labels and dialogs
* Remove some more tooltips and fix a typo
* Update base ts file
* Fix typo

tests/reference/coreProject_NewCustomA_nwProject.nwx

@@ -85,7 +85,7 @@
       <expanded>False</expanded>
     </item>
     <item handle="98010bd9270f9" order="0" parent="None">
-      <name>Entity</name>
+      <name>Entities</name>
       <type>ROOT</type>
       <class>ENTITY</class>
       <status>New</status>

tests/reference/coreProject_NewCustomB_nwProject.nwx

@@ -85,7 +85,7 @@
       <expanded>False</expanded>
     </item>
     <item handle="98010bd9270f9" order="0" parent="None">
-      <name>Entity</name>
+      <name>Entities</name>
       <type>ROOT</type>
       <class>ENTITY</class>
       <status>New</status>

tests/test_core/test_core_index.py

@@ -281,7 +281,7 @@ def testCoreIndex_ScanText(nwMinimal, mockGUI):
     assert theIndex.scanText(xHandle, "Hello World!") is False
 
     # Create the archive root
-    aHandle = theProject.newRoot("Outtakes", nwItemClass.ARCHIVE)
+    aHandle = theProject.newRoot("Archive", nwItemClass.ARCHIVE)
     assert theProject.projTree[aHandle] is not None
     xItem.setParent(aHandle)
     assert theIndex.scanText(xHandle, "Hello World!") is False