Fix window arrangement when a popup or the search prompt is open

When focusing the main view, going into full screen mode by pressing '+' twice,
and then opening the search prompt ('/') or a menu (e.g. '?' or ':'), the full
screen display would switch to the focused side panel.

Fix this by always excluding popups from the window arrangement logic. No popup
should ever have any influence on how the views beneath it are laid out.

pkg/gui/controllers/helpers/window_arrangement_helper_test.go

@@ -19,21 +19,20 @@ import (
 func TestGetWindowDimensions(t *testing.T) {
 	getDefaultArgs := func() WindowArrangementArgs {
 		return WindowArrangementArgs{
-			Width:               75,
-			Height:              30,
-			UserConfig:          config.GetDefaultConfig(),
-			CurrentWindow:       "files",
-			CurrentSideWindow:   "files",
-			CurrentStaticWindow: "files",
-			SplitMainPanel:      false,
-			ScreenMode:          types.SCREEN_NORMAL,
-			AppStatus:           "",
-			InformationStr:      "information",
-			ShowExtrasWindow:    false,
-			InDemo:              false,
-			IsAnyModeActive:     false,
-			InSearchPrompt:      false,
-			SearchPrefix:        "",
+			Width:             75,
+			Height:            30,
+			UserConfig:        config.GetDefaultConfig(),
+			CurrentWindow:     "files",
+			CurrentSideWindow: "files",
+			SplitMainPanel:    false,
+			ScreenMode:        types.SCREEN_NORMAL,
+			AppStatus:         "",
+			InformationStr:    "information",
+			ShowExtrasWindow:  false,
+			InDemo:            false,
+			IsAnyModeActive:   false,
+			InSearchPrompt:    false,
+			SearchPrefix:      "",
 		}
 	}