Use non-breaking spaces in tests

spec/views/new_gestionnaire/dossiers/show.html.haml_spec.rb

@@ -10,7 +10,7 @@ describe 'new_gestionnaire/dossiers/show.html.haml', type: :view do
   subject! { render }
 
   it 'renders the header' do
-    expect(rendered).to have_text("Dossier nº #{dossier.id}")
+    expect(rendered).to have_text("Dossier nº #{dossier.id}")
   end
 
   it 'renders the dossier infos' do

spec/views/new_user/dossiers/demande.html.haml_spec.rb

@@ -12,7 +12,7 @@ describe 'new_user/dossiers/demande.html.haml', type: :view do
   subject! { render }
 
   it 'renders the header' do
-    expect(rendered).to have_text("Dossier nº #{dossier.id}")
+    expect(rendered).to have_text("Dossier nº #{dossier.id}")
   end
 
   it 'renders the dossier infos' do

spec/views/new_user/dossiers/show.html.haml_spec.rb

@@ -11,7 +11,7 @@ describe 'new_user/dossiers/show.html.haml', type: :view do
   subject! { render }
 
   it 'renders a summary of the dossier state' do
-    expect(rendered).to have_text("Dossier nº #{dossier.id}")
+    expect(rendered).to have_text("Dossier nº #{dossier.id}")
     expect(rendered).to have_selector('.status-overview')
   end
 

spec/views/new_user/dossiers/show/_header.html.haml_spec.rb

@@ -9,7 +9,7 @@ describe 'new_user/dossiers/show/header.html.haml', type: :view do
 
   it 'affiche les informations du dossier' do
     expect(rendered).to have_text(dossier.procedure.libelle)
-    expect(rendered).to have_text("Dossier nº #{dossier.id}")
+    expect(rendered).to have_text("Dossier nº #{dossier.id}")
     expect(rendered).to have_text("en construction")
 
     expect(rendered).to have_selector("ul.tabs")