feat: autocomplete for component, helper, modifier helpers

[lifeart]

added support for string autocompletes in SubExpressions for:

{{yeld
   (hash 
       MyHelper=(helper "..autocompleted")
       MyModifier=(modifier "...autocompleted")
       MyComponent(component "...autocompleted")
   ) 
}}

[codecov]

Codecov Report

Merging #380 (64dc80e) into component-context-info-origin (e157566) will increase coverage by 0.11%.
The diff coverage is 94.87%.

@@                        Coverage Diff                        @@
##           component-context-info-origin     #380      +/-   ##
=================================================================
+ Coverage                          72.29%   72.40%   +0.11%     
=================================================================
  Files                                 57       57              
  Lines                               4844     4871      +27     
  Branches                             938      946       +8     
=================================================================
+ Hits                                3502     3527      +25     
- Misses                              1342     1344       +2     

Impacted Files	Coverage Δ
src/utils/ast-helpers.ts	83.58% <84.61%> (+0.05%)	⬆️
...uiltin-addons/core/template-completion-provider.ts	93.02% <100.00%> (+0.26%)	⬆️

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