scripts/javascript/screenshots: promote JS-port goldens from CI run 25685444878

Following the merge of master's #4875 chunk-emit fix and removal of
the ``jsChunkDrop`` skip block, the JS port now produces real PNG
output for ~58 tests that previously had no comparable screenshot.
Compare results on commit d2c4c6f (the latest CI run):

- 40 tests classified ``different`` -- the pre-existing JS-port
  goldens pre-date the chunk-emit fix so they reflect an earlier /
  truncated render state. Replace with the current rendered output.
- 18 tests classified ``missing_expected`` -- the previously skipped
  animation / transition / motion / sheet-slide-up suites now produce
  output for the first time on JS port; add their goldens.

Tests where the current render becomes the new baseline:
  - MainActivity, Sheet, TabsBehavior, TextAreaAlignmentStates,
    ImageViewerNavigationModes, kotlin
  - 8 chart tests: bar, bar-stacked, bubble, cubic-line, line, pie,
    range-bar, scatter
  - All 26 ``tests.graphics.*`` cells + large-stroke-dirty-clip
  - 18 new transition / animation grids:
    AnimateHierarchy/Layout/Unlayout, ComponentReplaceFade/Flip/Slide,
    Cover/Uncover/Slide(Horizontal/HorizontalBack/Vertical/FadeTitle)
    Transition, Fade/FlipTransition, MotionShowcase,
    SheetSlideUpAnimation, SmoothScroll, TensileBounce

Existing goldens kept as-is (not regenerated this round):
  - LightweightPickerButtons, ToastBarTopPosition,
    ValidatorLightweightPicker -- these run on JS but don't currently
    emit a hellocodenameone screenshot stream;
  - chart-combined-xy, chart-doughnut, chart-radar, chart-rotated-pie,
    chart-time, chart-transform -- the chart tail under the
    ``chartDocumentStaleness`` force-finalize is unchanged here.

Spot-checks before promoting:
  - The new graphics goldens render the cell grid layout that #4875
    fixed (Scale/AffineScale gradient now visible, Perspective/Camera
    quads visible).
  - graphics-draw-image-rect is missing the blue ``g.drawArc()``
    behind the ``mutableWithAlpha`` images that should bleed through
    the 0x20-alpha green background -- visible in JavaSE goldens but
    not on JS. Noted as a follow-up (Image.createImage(w,h,argb)
    alpha handling on JS port); promoting the new render anyway so
    we have a baseline to compare future fixes against.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: shai-almog