Move previewer.py into browser folder

qt/aqt/browser/__init__.py

@@ -8,6 +8,7 @@ import aqt
 
 from .browser import Browser
 from .dialogs import CardInfoDialog, ChangeModel, FindAndReplaceDialog, FindDupesDialog
+from .previewer import BrowserPreviewer, MultiCardPreviewer, Previewer
 from .sidebar import (
     SidebarItem,
     SidebarItemType,
@@ -39,3 +40,5 @@ sys.modules["aqt.find_and_replace"] = sys.modules["aqt.browser.dialogs"]
 aqt.find_and_replace = sys.modules["aqt.browser.dialogs"]  # type: ignore
 sys.modules["aqt.sidebar"] = sys.modules["aqt.browser.sidebar"]
 aqt.sidebar = sys.modules["aqt.browser.sidebar"]  # type: ignore
+sys.modules["aqt.previewer"] = sys.modules["aqt.browser.previewer"]
+aqt.previewer = sys.modules["aqt.browser.previewer"]  # type: ignore

qt/aqt/browser/browser.py

@@ -24,6 +24,8 @@ from aqt.browser.dialogs import (
     FindAndReplaceDialog,
     FindDupesDialog,
 )
+from aqt.browser.previewer import BrowserPreviewer as PreviewDialog
+from aqt.browser.previewer import Previewer
 from aqt.browser.sidebar import SidebarTreeView
 from aqt.browser.table import Table
 from aqt.editor import Editor
@@ -44,8 +46,6 @@ from aqt.operations.tag import (
     clear_unused_tags,
     remove_tags_from_notes,
 )
-from aqt.previewer import BrowserPreviewer as PreviewDialog
-from aqt.previewer import Previewer
 from aqt.qt import *
 from aqt.switch import Switch
 from aqt.utils import (