Co-authored-by: Renovate Bot <bot@renovateapp.com>

* Update Bitwarden color

* Update bitwarden color source

* Add TuneIn to JSON file

* Add TuneIn SVG

* Update TuneIn source

* Remove trailing whitespace

* Update TuneIn size

* Change TuneIn width to 24

* Fix TuneIn Logo

Remove blank line

Co-authored-by: Peter Noble <PeterShaggyNoble@users.noreply.github.com>

* Add Shenzhen Metro

* Fix two outermost feet not touching the bottom of the canvas, change color and update source for Shenzhen Metro icon.

* Add Scratch

* Update scratch.svg

* Add a SVGO Docker image

* Update Dockerfile and .dockerignore

Update the Dockerfile to create a docker image that is generally 
applicable to run NPM commands, including but not limited to:

- npm run test
- npm run svgo
- npm run lint

Also updated the .dockerignore file to exclude:

- The node_modules folder
- Common Jekyll folders/files
- Files generated by the build script

The reason for choosing the alpine docker image (rather than a node 
docker image) is that the CLI out of the box is better.

* Add section on using Docker to Contributing Guidelines

* Readd entrypoint for SVGO optimization to Dockerfile

Update the Dockerfile based on the original work in 
3299338 by re-adding an ENTRYPOINT to 
the Dockerfile. This ENTRYPOINT makes it extremely easy to spin up a 
quick Docker container to optimize a single SVG (much simpler than my 
copy-in -> optimize -> copy-out approach).

The description for how to use the Docker image to run other NPM scripts 
has been updated accordingly. The provided command overrides the above 
ENTRYPOINT by simple starting a shell so the user can interact with the 
project.

Co-authored-by: Eric Cornelisesn <ericornelissen@gmail.com>

* Add Amazon Prime

* Rename as Prime

* Add linter to check svg path dimensions

Float precision is set at 3 which is the default for svgo in .svgo.yml;
precision can be raised over time.

This adds an ignore file with the current paths of non-conforming icons.

This also changes the name of the icon title linter as well so it reads
more nicely than "custom".

* Update CONTRIBUTING GUIDELINES

Add a note on visual imperfections and viewbox problems due to 
optimizing.

Co-authored-by: Eric Cornelisesn <ericornelissen@gmail.com>
Co-authored-by: Peter Noble <PeterShaggyNoble@users.noreply.github.com>

* Update Fur Affinity icon

* Update color for Fur Affinity icon

Co-authored-by: Peter Noble <PeterShaggyNoble@users.noreply.github.com>

* Added Land Rover Icon

* Whitespace fix

Run svgo again to fix the overzealous whitespace consumption of svgomg.

Co-authored-by: Lucas Becker <runxel@users.noreply.github.com>

Co-authored-by: Lucas Becker <runxel@users.noreply.github.com>