fix front page map for new LEL version

[jywarren]

Fixes #1263 !

[codeclimate]

Code Climate has analyzed commit b1023c7 and detected 0 issues on this pull request.

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[jywarren]

NameError: undefined local variable or method `region' for #<ActionDispatch::Routing::Mapper:0x0000000007eb5238>
/home/travis/build/publiclab/mapknitter/config/routes.rb:77:in `block (2 levels) in <main>'

[codecov]

Codecov Report

Merging #1266 into main will increase coverage by 31.00%.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##             main    #1266       +/-   ##
===========================================
+ Coverage   41.92%   72.92%   +31.00%     
===========================================
  Files          40       40               
  Lines        1579     1400      -179     
===========================================
+ Hits          662     1021      +359     
+ Misses        917      379      -538     

Impacted Files	Coverage Δ
app/controllers/front_ui_controller.rb	74.28% <100.00%> (+31.42%)	⬆️
app/models/user.rb	100.00% <0.00%> (+3.57%)	⬆️
app/models/map.rb	93.54% <0.00%> (+3.87%)	⬆️
app/helpers/application_helper.rb	50.00% <0.00%> (+20.58%)	⬆️
app/controllers/application_controller.rb	88.88% <0.00%> (+22.22%)	⬆️
app/controllers/sessions_controller.rb	32.91% <0.00%> (+32.91%)	⬆️
app/controllers/maps_controller.rb	85.47% <0.00%> (+47.86%)	⬆️
app/controllers/annotations_controller.rb	59.25% <0.00%> (+59.25%)	⬆️
app/controllers/images_controller.rb	76.54% <0.00%> (+76.54%)	⬆️
... and 8 more