feat: named slots context autocomplete

[lifeart]

implemented named slots context autocomplete

my-component

{{yield (hash Foo=(component "Bar")) to="body"}}

component-usage

<MyComponent>
  <:body as |k|>
   <k - {k.Foo autocomplete} >
  </body>
</MyComponent>

[codecov]

Codecov Report

Merging #381 (5d738dd) into component-context-info-origin (5f3e91d) will decrease coverage by 0.15%.
The diff coverage is 64.70%.

❗ Current head 5d738dd differs from pull request most recent head 1fae3cd. Consider uploading reports for the commit 1fae3cd to get more accurate results

@@                        Coverage Diff                        @@
##           component-context-info-origin     #381      +/-   ##
=================================================================
- Coverage                          72.40%   72.25%   -0.16%     
=================================================================
  Files                                 57       57              
  Lines                               4871     4883      +12     
  Branches                             946      950       +4     
=================================================================
+ Hits                                3527     3528       +1     
- Misses                              1344     1355      +11     

Impacted Files	Coverage Δ
src/utils/usages-api.ts	56.57% <50.00%> (ø)
src/glimmer-utils.ts	50.50% <61.53%> (+0.50%)	⬆️
...uiltin-addons/core/template-completion-provider.ts	93.02% <100.00%> (ø)
src/utils/yield-context-extractor.ts	54.40% <0.00%> (-4.81%)	⬇️

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