fix: update imports and props for aliased components

[rtpascual]

Issue #, if available:

Description of changes:

• Alias import to match aliased component type from original component. Example: import { Grid as GridCustom } from "./Grid"
• Point props import to original component - import { GridProps } from "./Grid" instead of import { GridCustomProps } from "./GridCustom"

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[codecov-commenter]

Codecov Report

Merging #868 (122dc58) into main (47b179b) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #868   +/-   ##
=======================================
  Coverage   92.82%   92.83%           
=======================================
  Files         115      115           
  Lines        4807     4813    +6     
  Branches     1377     1379    +2     
=======================================
+ Hits         4462     4468    +6     
  Misses        326      326           
  Partials       19       19           

Impacted Files	Coverage Δ
...-react/lib/amplify-ui-renderers/customComponent.ts	100.00% <100.00%> (ø)
packages/codegen-ui-react/lib/helpers/index.ts	100.00% <100.00%> (ø)
...gen-ui-react/lib/react-studio-template-renderer.ts	91.82% <100.00%> (+0.01%)	⬆️

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