[frontend] fix link resolution for file export (#5466)

[labo-flg]

Proposed changes

• Make sure all use of StixDomainObjectHeader have the right entity type set
• resolveLink utility is now insensitive to capitalization of the entity type, to avoid future typo problems)

Related issues

• Knowledge > Export leads to unknown page (null in URL) #5466

Checklist

• I consider the submitted work as finished
• I tested the code for its functionality
• I wrote test cases for the relevant uses case
• I added/update the relevant documentation (either on github or on notion)
• Where necessary I refactored code to improve the overall quality

Further comments

To test, go to a Country knowledge view > export (any format) and hit Create. You should properly redirected to the entity's data tab.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (6050df4) 66.24% compared to head (093441e) 66.24%.
Report is 5 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #5472   +/-   ##
=======================================
  Coverage   66.24%   66.24%           
=======================================
  Files         508      508           
  Lines       59807    59807           
  Branches     4365     4366    +1     
=======================================
+ Hits        39619    39622    +3     
+ Misses      20188    20185    -3     

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[SouadHadjiat]

There is still this one which should be Administrative-Area :

<StixDomainObjectHeader
            entityType="administrativeArea"
            disableSharing={true}
            stixDomainObject={administrativeArea}
            PopoverComponent={
              <AdministrativeAreaPopover id={administrativeArea.id} />
            }
            enableQuickSubscription={true}
          />

[SouadHadjiat]

Also, about the uppercase fix, I think it's better to put the right entity_type with the right case, or change the method to put everything in lowercase and lowercase the type.
Anyway I found country and city which are in lowercase here :

<StixDomainObjectHeader
            entityType="country"
            disableSharing={true}
            stixDomainObject={country}
            PopoverComponent={<CountryPopover id={country.id} />}
            enableQuickSubscription={true}
          />

<StixDomainObjectHeader
            entityType="city"
            disableSharing={true}
            stixDomainObject={city}
            PopoverComponent={<CityPopover id={city.id} />}
            enableQuickSubscription={true}
          />

[labo-flg]

Yes you're right, let's use the right entity type, it makes much more sense.