Example use-case: given a github URL in a source code comment or commit
message, one can now run:

git bug webui --query 'metadata:github-url:"https://github.com/author/myproject/issues/42"'

on the commandline to look up the details of that issue on the web ui
quickly, offline.

Fixes <https://github.com/MichaelMure/git-bug/issues/592>.

Will use contrastText which should always make the icon visible, but use fade
to dimme the contrast down.

Currently this introduces to much state problems.

This will ensure better color managment for Message titles

- Use theme colors for title input.
- Remove inputTitle classes as they are not applied to the TextField.
  This will lead to double borders and artifacts at the field corners.

This should prevent unnecessary merge conflicts.

Adjust header colors on light theme

- Use adjusted background-color for header instead of text.hint.
- Use slightly darker secondary font color for better readability against the
  head background color.

Use more semantic theme colors for bug list
Use more semantic theme colors for bug messages
Fix usage of text hint for filter header

Add option to specify host address

build(deps): [security] bump node-notifier from 8.0.0 to 8.0.1 in /webui

'--host'-cmdline-option is added to the webui command.

Previously, the WebUI couldn't be hosted inside of a container. As the
WebUI-server only listend per default to localhost and there was no
option to change the address, the server should listend to. This means,
that the WebUI was only reachable from localhost. So only from inside of
the container but never from outside.
The '--host'-option allows to set the IP address or a hostname
which the WebUI-server should listen to. E.g. by setting 0.0.0.0 or ::
as address.

Update documentation for new option.

Update shell completion for new option.

Compilation seems to add another go-gitlab version.

build(deps): bump github.com/spf13/cobra from 1.1.1 to 1.1.3

build(deps): bump github.com/xanzy/go-gitlab from 0.40.1 to 0.44.0

Bumps [github.com/xanzy/go-gitlab](https://github.com/xanzy/go-gitlab) from 0.40.1 to 0.44.0.
- [Release notes](https://github.com/xanzy/go-gitlab/releases)
- [Changelog](https://github.com/xanzy/go-gitlab/blob/master/releases_test.go)
- [Commits](https://github.com/xanzy/go-gitlab/compare/v0.40.1...v0.44.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [github.com/spf13/cobra](https://github.com/spf13/cobra) from 1.1.1 to 1.1.3.
- [Release notes](https://github.com/spf13/cobra/releases)
- [Changelog](https://github.com/spf13/cobra/blob/master/CHANGELOG.md)
- [Commits](https://github.com/spf13/cobra/compare/v1.1.1...v1.1.3)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Add ability to search by arbitrary metadata

Example:

~/git/git-bug/git-bug ls --metadata github-url=https://github.com/author/myproject/issues/42

or

~/git/git-bug/git-bug ls metadata:github-url:\"https://github.com/author/myproject/issues/42\"

Fixes the cmdline part of <https://github.com/MichaelMure/git-bug/issues/567>.

Commits for issues #554, #564 and #566

- New build after removing images from public folder

- Remove images for ReactJS, MaterialUI, GraphQL and Apollo GraphQL

Having the resolver in Definition doesn't actually work well as the resolver
is very situational.