feat: show guide of selected node

[ktsn]

TODO:

• Address various scale
• [ ] Add tests

[codecov]

Codecov Report

Merging #30 into master will decrease coverage by 0.5%.
The diff coverage is 15.38%.

@@            Coverage Diff             @@
##           master      #30      +/-   ##
==========================================
- Coverage   65.02%   64.52%   -0.51%     
==========================================
  Files          44       44              
  Lines        1424     1432       +8     
  Branches      332      331       -1     
==========================================
- Hits          926      924       -2     
- Misses        483      493      +10     
  Partials       15       15

Impacted Files	Coverage Δ
src/view/components/Renderer.vue	80% <0%> (-16.97%)	⬇️
src/view/components/PageMain.vue	0% <0%> (ø)	⬆️
src/view/components/Node.vue	48.83% <100%> (-1.17%)	⬇️

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