feat(nextjs-component): experimental - allow serving API pages from d…

[dphang]

…efault lambda

• With newer Next.js versions, chunking of code is improved/smaller so now it's easier to serve all types of pages/APIs from the same Lambda.
• TODO: support cross-page rewrites

[slsnextbot]

Handler Size Report

There are changes to handler sizes. Please review.

Base Handler Sizes (kB) (commit 801c391)

{
    "Lambda@Edge": {
        "Default Lambda": {
            "Standard": 1268,
            "Minified": 452
        },
        "API Lambda": {
            "Standard": 100,
            "Minified": 44
        },
        "Image Lambda": {
            "Standard": 933,
            "Minified": 371
        },
        "Regeneration Lambda": {
            "Standard": 655,
            "Minified": 237
        }
    }
}

New Handler Sizes (kB) (commit f9486c8)

{
    "Lambda@Edge": {
        "Default Lambda": {
            "Standard": 1271,
            "Minified": 453
        },
        "API Lambda": {
            "Standard": 100,
            "Minified": 44
        },
        "Image Lambda": {
            "Standard": 933,
            "Minified": 371
        },
        "Regeneration Lambda": {
            "Standard": 655,
            "Minified": 237
        }
    }
}

[codecov]

Codecov Report

Merging #1632 (69160b9) into master (801c391) will decrease coverage by 0.28%.
The diff coverage is 56.25%.

❗ Current head 69160b9 differs from pull request most recent head f9486c8. Consider uploading reports for the commit f9486c8 to get more accurate results

@@            Coverage Diff             @@
##           master    #1632      +/-   ##
==========================================
- Coverage   84.15%   83.86%   -0.29%     
==========================================
  Files          98       98              
  Lines        3452     3477      +25     
  Branches     1028     1045      +17     
==========================================
+ Hits         2905     2916      +11     
- Misses        485      499      +14     
  Partials       62       62              

Impacted Files	Coverage Δ
...ackages/libs/lambda-at-edge/src/default-handler.ts	86.03% <25.00%> (-2.86%)	⬇️
...rless-components/nextjs-component/src/component.ts	85.46% <63.15%> (-1.81%)	⬇️
packages/libs/lambda-at-edge/src/build.ts	96.28% <80.00%> (-0.39%)	⬇️

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