WBO does not work with node 8

Fixes https://github.com/lovasoa/whitebophir/issues/164

Instruct the user to create a persistent volume with the right permissions

See https://github.com/lovasoa/whitebophir/issues/164

...  to match latest Dockerfile changes

The old behavior was wheel to scroll and ctrl+wheel to zoom.
The new behavior is the opposite.

Fixes https://github.com/lovasoa/whitebophir/issues/156

See #153

* update json vietnam language 

update vietnam language

* Update server/translations.json

Co-authored-by: Ophir LOJKINE <pere.jobs@gmail.com>

Co-authored-by: Ophir LOJKINE <pere.jobs@gmail.com>

The new docker pull command works with Windows Powershell
In response to issue 146 from lovasoa/whitebophir on github

Make it explicit that the given docker command is for bash shells

See: https://github.com/lovasoa/whitebophir/issues/146

Shorten docker build times by copying the package.json separately.

Install dependencies with npm ci

Update node to the new LTS: 14

* Added secondary tool icon

* Create secondary icon in html instead of js

* Revert change to handlebars integrity

* revert package.lock changes

* revert package.lock changes

* Set styles in css instead of js+html

Co-authored-by: James Deacon <james@volute.co.uk>
Co-authored-by: Ophir LOJKINE <pere.jobs@gmail.com>
Co-authored-by: Ophir LOJKINE <ophir.lojkine@auto-grid.com>

Ukrainian translation (Українська)

A bug was introduced in 50da719bda
most elements do not have a deltax and deltay property

See #97