#2303 Impossible to surf on 3D printing SE ZIM file

[macgills]

Fixes #2303

• opening a zim file unregisters before loading

[codecov]

Codecov Report

Merging #2494 (b5672c6) into develop (17b71ab) will increase coverage by 0.35%.
The diff coverage is 34.37%.

@@              Coverage Diff              @@
##             develop    #2494      +/-   ##
=============================================
+ Coverage      38.76%   39.12%   +0.35%     
  Complexity        31       31              
=============================================
  Files            285      286       +1     
  Lines           7295     7302       +7     
  Branches         887      890       +3     
=============================================
+ Hits            2828     2857      +29     
+ Misses          4174     4149      -25     
- Partials         293      296       +3     

Impacted Files	Coverage Δ	Complexity Δ
...rc/main/java/org/kiwix/kiwixmobile/core/CoreApp.kt	64.81% <0.00%> (-1.23%)	0.00 <0.00> (ø)
...kiwix/kiwixmobile/core/main/CoreWebViewClient.java	17.24% <0.00%> (+0.84%)	0.00 <0.00> (ø)
...org/kiwix/kiwixmobile/core/reader/ZimFileReader.kt	3.44% <0.00%> (-0.13%)	0.00 <0.00> (ø)
...iwix/kiwixmobile/core/main/CoreReaderFragment.java	24.40% <53.33%> (+1.38%)	0.00 <0.00> (ø)
...iwixmobile/core/main/ServiceWorkerUninitialiser.kt	66.66% <66.66%> (ø)	0.00 <0.00> (?)
...iwix/kiwixmobile/core/reader/ZimReaderContainer.kt	9.37% <100.00%> (ø)	0.00 <0.00> (ø)
...rg/kiwix/kiwixmobile/core/main/CoreMainActivity.kt	49.12% <0.00%> (+2.63%)	0.00% <0.00%> (ø%)
.../kiwix/kiwixmobile/core/main/TableDrawerAdapter.kt	43.90% <0.00%> (+7.31%)	0.00% <0.00%> (ø%)
... and 2 more

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[macgills]

@abdulwd finally have this fixed, if there are any obstacles to reviewing please let me know