WIP: GUI

[JensKrumsieck]

Next steps to do:

• Add proper view models for workflow and tool and add to state as enum
• Save changes done in code editor with live update in nodes or error on invalid
• Improve project handling. Folder valid but no workflow.toml? Ask user if he/she wants s4n init
• Add new steps from sidebar (drag and drop tools)
• Shift+A opens dropdown with possibility to add new steps
• Add second view possibilty in sidebar "only cwl"
• [ ] Add fields for default values in node editor (?) - will break how we currently handling drawing of edges (later point)
• Complete styling for edges (todo! macros)
• Get rid of most of the .unwrap()
• [ ] Add a (tab?, sidebar right?, dropdown?) view to show infos about currrent open file with possibility to execute (how do other tools do this?)
• [ ] Add possibility to annotate label, description, intent in view (of above task)
• Delete button in file list
• New Workflow creation
• New Tool create

[JensKrumsieck]

current status, workflow can be loaded into graph representation using `petgraph` crate . connections to outputs missing in conversion currently. Nodes can be displayed, and dragged, a bit clunky however.

only connected slots displaying currently, not all of tool however (!)

[JensKrumsieck]

Moving the onmouseXXX events to parent worked to make dragging less clunky, also missing connection have been added:

[JensKrumsieck]

Can be merged kinda soon after #202 is merged

[JensKrumsieck]

started with create form:

after that we'll merge to main

[github-actions]

Package	Line Rate	Health
packages/gui/src	27%	❌
packages/cwl_annotation/src	35%	❌
packages/cwl_core/src	79%	✔
packages/gui/src/components/files	9%	❌
packages/core/src	72%	➖
packages/remote_execution/src	0%	❌
packages/test_utils	83%	✔
packages/gui/src/components/layout	0%	❌
packages/util/src	82%	✔
packages/core/src/parser	93%	✔
packages/gui/src/components	2%	❌
packages/cwl/src	0%	❌
packages/gui/src/components/graph	0%	❌
packages/remote_execution/src/reana	0%	❌
packages/repository/src	97%	✔
packages/cli/src	62%	➖
packages/reana/src	79%	✔
packages/cwl_execution/src/runner	65%	➖
packages/cli/src/commands	62%	➖
packages/cwl_execution/src	64%	➖
Summary	61% (3970 / 6501)	➖

[JensKrumsieck]

The PoC is prepared to merge into master