1699 Have Stories on each level of hierarchy

[igor-dv]

Issue: #1699

What I did

Fix #1699

[codecov]

Codecov Report

Merging #1763 into release/3.3 will decrease coverage by 0.11%.
The diff coverage is 87.5%.

@@               Coverage Diff               @@
##           release/3.3    #1763      +/-   ##
===============================================
- Coverage        23.12%   23.01%   -0.12%     
===============================================
  Files              253      253              
  Lines             5755     5731      -24     
  Branches           687      682       -5     
===============================================
- Hits              1331     1319      -12     
+ Misses            3935     3919      -16     
- Partials           489      493       +4

Impacted Files	Coverage Δ
...mponents/left_panel/stories_tree/tree_node_type.js	0% <ø> (ø)	⬆️
...ponents/left_panel/stories_tree/tree_decorators.js	34.37% <0%> (+1.04%)	⬆️
...les/ui/components/left_panel/stories_tree/index.js	100% <100%> (ø)	⬆️
lib/ui/src/modules/ui/libs/hierarchy.js	50.74% <85.71%> (+1.93%)	⬆️
app/vue/src/server/utils.js	0% <0%> (-32.15%)	⬇️
lib/ui/src/libs/key_events.js	23.25% <0%> (ø)	⬆️
lib/ui/src/modules/ui/libs/filters.js	47.36% <0%> (ø)	⬆️
lib/ui/src/modules/ui/containers/down_panel.js	23.52% <0%> (ø)	⬆️
lib/ui/src/modules/ui/components/menu_item.js	19.14% <0%> (ø)	⬆️
lib/components/src/navigation/menu_link.js	0% <0%> (ø)	⬆️
... and 21 more

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[ndelangen]

[ndelangen]

everything looks good to me.

I tested:
cra-kitchen-sink: ✅
vue-kitchen-sink: ✅ (temp edited a story)
react-native-vanilla: ✅ (temp edited a story)

All examples kinda need some reorganising, for sure. But that's out of scope for this PR.

I'm super impressed by how fast you made this happen @igor-dv ! 💥

[Hypnosphi]

LGTM