Issue list improvements and filtering

This starts some ground work for filtering & moves the pagination logic
in the query params.
Also has a nice loading placeholder.

Webui: display current identity + improve app bar

Fix column overflow in webui

Use the IntrospectionFragmentMatcher & update dependencies

Github import error

fix #286

* presence of an error in the import event doesn't indicate failure

* Add NewImportWarning for things that aren't exactly errors.
  Use this for unhandled changelog events.
* Add NewExportWarning for things that aren't exactly errors.
  Use this for un-exportable status changes.

Fix gitlab

fix #284

bridge/gitlab: add base url configuration

Co-Authored-By: Michael Muré <batolettre@gmail.com>

build(deps): bump github.com/MichaelMure/go-term-text from 0.2.1 to 0.2.4

Bumps [github.com/MichaelMure/go-term-text](https://github.com/MichaelMure/go-term-text) from 0.2.1 to 0.2.4.
- [Release notes](https://github.com/MichaelMure/go-term-text/releases)
- [Commits](https://github.com/MichaelMure/go-term-text/compare/v0.2.1...v0.2.4)

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

bridge: allow to configure and pull without having set a user first

bridge/gitlab: fix api calls with self hosted Gitlab instances

- init() only the importer or exporter as required
- assign a "default user" user Id to credentials at creation if no user has been set
- "bridge auth": also display the user
- "bridge auth show": adapt to a potential "default user" user Id
- "bridge configure": allow to run without a user set
- "bridge pull": allow to run without a user set
- "user adopt": replace "default user" by the actual user id when run

* presence of an error in the import event doesn't indicate failure

* Fix git config reader can't read values with spaces
* Add bug-id-revmap config option for the reverse map, and use this
  in the importer
* Add NewImportWarning for things that aren't exactly errors.
  Use this for unhandled changelog events.
* Add NewExportWarning for things that aren't exactly errors.
  Use this for un-exportable status changes.
* Strip newlines from titles on import

* don't prefix imported title's with jira ID
* fix import new comment due to wrong variable name
* fix double import of comment edition due to improper err check
* fix JIRA cloud paginated changelog has a different JSON
  field then the embedded changelog in the JIRA server issue
  object
* fix splitting label strings yielded an empty string as a label
  value

* Support both token and session credential types
* use getTimeDervedID in export.go
* keyOrigin -> core.KeyOrigin
* fix one indentation
* remove project key from operation metadata
* fix missing credentials codepath if not using sidecar

* return error, don't panic
* skipping status export is an error
* use switch in config.go
* move PromptPassword to input
* move client construction into getIdentityClient
* use non-pointer context throughout client since it is an interface
* remove some TODOs
* don't emit multiple nothing-events, just one per bug only if nothing
  happened.
* rename EditBody to EditCreateComment
* add configuration notes about additional values
* store bug id map in a dictionary in the config
* some fixes from testing

bridge/gitlab: support self-hosted GitLab instance

cmd: "user create" only assign the user identity if not set