Link the already-packaged typescript package so that ycmd will support
completions for javascript and typescript filetypes.

The structure of these installation directories is "documented" here:
<https://github.com/ycm-core/ycmd/blob/master/build.py>.

I don't completely understand why the language support is passed as
optional attrs Is it because folks want to build leaner packages and
pass null or because they want to target particular dependencies? At any
rate I followed the pattern.

mesa provides libgbm required to build kwin_wayland drm backend with hw accel (compositing&clients)

https://bugs.kde.org/show_bug.cgi?id=404652
https://phabricator.kde.org/D26635

…script as the user

The test harness provides the commands it wishes to run in Bourne
syntax.  This fails if the user uses a different shell.  For example,
with fish:

  machine.wait_for_unit("graphical-session.target", "alice")

machine # fish: Unsupported use of '='. To run '-u`' with a modified environment, please use 'env XDG_RUNTIME_DIR=/run/user/`id -u`…'
machine # XDG_RUNTIME_DIR=/run/user/`id -u` systemctl --user --no-pager show "graphical-session.target"
machine # ^
machine # [   16.329957] su[1077]: pam_unix(su:session): session closed for user alice
error: retrieving systemctl info for unit "graphical-session.target" under user "alice" failed with exit code 127

https://lists.zx2c4.com/pipermail/wireguard/2020-May/005415.html

…er-with-unknown-shell

nixos/test-driver: Specify /bin/sh shell when running a bourne shell script as the user

uclibc: 1.0.32 -> 1.0.33

ycmd: typescript completion support

plasma5.kwin: add mesa dependency

libfm: fix duplicate inclusion of libfm-extra

kdegraphics-thumbnailers: Add patch for thumbnail.so hang.

xlog: 2.0.17 -> 2.0.19