MINOR: Fix WebTileDataSource API break due to removal of appId and appCode

[ninok]

No description provided.

[ninok]

@harpgl-bot retest this please

[codecov-io]

Codecov Report

Merging #1391 into master will decrease coverage by 0.1%.
The diff coverage is 75%.

@@            Coverage Diff             @@
##           master    #1391      +/-   ##
==========================================
- Coverage   54.73%   54.62%   -0.11%     
==========================================
  Files         265      254      -11     
  Lines       23695    23423     -272     
  Branches     5310     5263      -47     
==========================================
- Hits        12969    12795     -174     
+ Misses      10726    10628      -98

Impacted Files	Coverage Δ
...e/harp-webtile-datasource/lib/WebTileDataSource.ts	47.89% <75%> (+1.88%)	⬆️
...re/harp-text-canvas/lib/rendering/TextMaterials.ts	42.85% <0%> (-34.07%)	⬇️
@here/harp-mapview/lib/ThemeHelpers.ts	6.55% <0%> (-0.68%)	⬇️
@here/harp-omv-datasource/lib/clipPolygon.ts	96.96% <0%> (-0.47%)	⬇️
...rp-mapview/lib/text/TextElementsRendererOptions.ts	100% <0%> (ø)	⬆️
@here/harp-datasource-protocol/lib/Outliner.ts	100% <0%> (ø)	⬆️
...ere/harp-materials/lib/LuminosityHighPassShader.ts	100% <0%> (ø)	⬆️
@here/harp-test-utils/lib/WebGLStub.ts	100% <0%> (ø)	⬆️
...p-geoutils/lib/tiling/QuadTreeSubdivisionScheme.ts	100% <0%> (ø)	⬆️
@here/harp-utils/lib/Mixins.ts	76.92% <0%> (ø)	⬆️
... and 28 more

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