adwaita-icon-theme: upgrade 45.0 -> 46.0

adwaita-icon-theme: upgrade 45.0 -> 46.0

Changelog:
==========
- cursors: fix windows build
- cursors: reinstate some x11 cursor names
- symbolic: thunderbolt, phone & export fixes
- index.theme: remove duplicate entries
- cursors: clean up shapes, sync DND metaphors with macos
- symbolic: revert about metaphor
- symbolic: shared screen metaphor update
- fullcolor: antialias 16x16 a little more
- symbolic: replace filled silhouettes with outlines
- cursors: only cover the CSS named
- symbolic: help-about metaphor
- symbolic: sync not-junk metaphor (https://gitlab.gnome.org/GNOME/evolution/-/issues/1710#note_1924546)
- symbolic: cleaned up export with Symbolic Preview

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>