convert job_title to govuk_text_field (#8496)

Author: starswan

.simplecov

@@ -70,9 +70,9 @@ if ENV.fetch("COVERAGE", 0).to_i.positive?
     # However (possibly due to some residual random behaviour in test factories)
     # the line coverage needs to be set 0.02 below the reported value.
     # Normally this value needs to be 0.01 below the reported value due to rounding issues.
-    minimum_coverage line: 97.43, branch: 87.35
-    # Values from test run Mon 9th March 2026
-    # 97.45% (12667 / 12998) -> 333 - 2 = 331 lines uncovered
-    # 87.37% (2823 / 3231) -> 177 + 231 = 408 branches uncovered
+    minimum_coverage line: 97.57, branch: 87.38
+    # Values from test run Fri 6th March 2026
+    # 97.7% (12705 / 13004) -> 308 + 53 = 361 lines uncovered
+    # 87.47% (2828 / 3233) -> 179 + 233 = 412 branches uncovered
   end
 end

app/views/publishers/vacancies/build/job_title.html.slim

@@ -8,11 +8,9 @@ end
 = form_for form, url: wizard_path(current_step), method: :patch do |f|
   = f.govuk_error_summary
 
-  = f.govuk_text_area :job_title,
+  = f.govuk_text_field :job_title,
     label: { text: vacancy_form_page_heading(vacancy, step_process, back_path: back_path), tag: "h1", size: "l" },
     hint: { text: vacancy_job_title_form_hint_text(vacancy) },
-    class: "govuk-input",
-    max_chars: 75,
     required: true
 
   = render "publishers/vacancies/vacancy_form_partials/submit", f: f