Fixes #1896 Updated texture when changing themes

[nzjony]

No description provided.

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@efdb7fb). Click here to learn what that means.
The diff coverage is 0.00%.

@@            Coverage Diff            @@
##             master    #1898   +/-   ##
=========================================
  Coverage          ?   65.22%           
=========================================
  Files             ?      286           
  Lines             ?    26084           
  Branches          ?     5891           
=========================================
  Hits              ?    17013           
  Misses            ?     9071           
  Partials          ?        0           

Impacted Files	Coverage Δ
@here/harp-mapview/lib/MapView.ts	68.12% <0.00%> (ø)
@here/harp-mapview/lib/poi/PoiRenderer.ts	18.28% <0.00%> (ø)
...tasource-protocol/lib/operators/StringOperators.ts	30.76% <0.00%> (ø)
@here/harp-mapview/lib/MapViewFog.ts	66.17% <0.00%> (ø)
...ere/harp-mapview-decoder/lib/TileDecoderService.ts	9.67% <0.00%> (ø)
@here/harp-mapview-decoder/lib/WorkerService.ts	7.84% <0.00%> (ø)
@here/harp-mapview-decoder/lib/DataProvider.ts	100.00% <0.00%> (ø)
@here/harp-mapview/lib/text/FontCatalogLoader.ts	85.71% <0.00%> (ø)
@here/harp-text-canvas/lib/TextCanvas.ts	63.40% <0.00%> (ø)
...ce/lib/adapters/geojson-vt/GeoJsonVtDataAdapter.ts	85.39% <0.00%> (ø)
... and 277 more

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