Asset Browser: Move Asset Library selector to navigation bar

The menu to select the active Asset Library is now in the left bar (so called
"Source List", although I'd prefer "Navigation-Bar").

This has some benefits:
* All Asset Library navigation is in the left sidebar now, giving nice grouping
  and a top-to-bottom & left-to-right flow of the layout. The header is focused
  on view set-up now.
* Catalogs are stored inside the asset library. Makes sense to have them right
  under that.
* Less content in the header allows for less wide Asset Browsers without
  extensive scrolling.
* This location gives more space to add options or operators for Asset
  Libraries.

Main downside I see is that the side-bar needs to be opened to change
libraries, which takes quite some space. In practice there shouldn't be need to
do this often though.

1 files changed, 0 insertions, 6 deletions

diff --git a/release/scripts/startup/bl_ui/space_filebrowser.py b/release/scripts/startup/bl_ui/space_filebrowser.py
index 5dd8c69f3d5..f54a2446c7e 100644
--- a/release/scripts/startup/bl_ui/space_filebrowser.py
+++ b/release/scripts/startup/bl_ui/space_filebrowser.py
@@ -36,12 +36,6 @@ class FILEBROWSER_HT_header(Header):
         space_data = context.space_data
         params = space_data.params
 
-        row = layout.row(align=True)
-        row.prop(params, "asset_library_ref", text="")
-        # External libraries don't auto-refresh, add refresh button.
-        if params.asset_library_ref != 'LOCAL':
-            row.operator("file.refresh", text="", icon='FILE_REFRESH')
-
         layout.separator_spacer()
 
         layout.prop(params, "import_type", text="")