Fix some typo in string file (#5105)

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## Explanation
Fix some typo in string file

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app/src/main/java/org/oppia/android/app/hintsandsolution/HintsAndSolutionDialogFragmentPresenter.kt

@@ -92,7 +92,7 @@ class HintsAndSolutionDialogFragmentPresenter @Inject constructor(
       HintsAndSolutionFragmentBinding.inflate(inflater, container, /* attachToRoot= */ false)
     binding.hintsAndSolutionToolbar.setNavigationIcon(R.drawable.ic_close_white_24dp)
     binding.hintsAndSolutionToolbar.setNavigationContentDescription(
-      R.string.hints_andSolution_close_icon_description
+      R.string.hints_and_solution_close_icon_description
     )
     binding.hintsAndSolutionToolbar.setNavigationOnClickListener {
       (fragment.requireActivity() as? HintsAndSolutionListener)?.dismiss()

app/src/main/res/values-ar/strings.xml

@@ -418,7 +418,7 @@
   <string name="no_new_hint_available">لا يوجد تلميح جديد متاح</string>
   <string name="show_hints_and_solution">إظهار الملاحظات والحل</string>
   <string name="hint_list_item_number">تلميح %s</string>
-  <string name="hints_andSolution_close_icon_description">العودة للسابق</string>
+  <string name="hints_and_solution_close_icon_description">العودة للسابق</string>
   <string name="hints_toolbar_title">الملاحظات</string>
   <string name="show_solution">عرض الحل</string>
   <string name="reveal_solution">عرض الحل</string>

app/src/main/res/values-pcm-rNG/strings.xml

@@ -392,7 +392,7 @@
   <string name="no_new_hint_available">No new hint dey</string>
   <string name="show_hints_and_solution">Show hints and solution</string>
   <string name="hint_list_item_number">Hint %s</string>
-  <string name="hints_andSolution_close_icon_description">Go up</string>
+  <string name="hints_and_solution_close_icon_description">Go up</string>
   <string name="hints_toolbar_title">Hints</string>
   <string name="show_solution">Show solution</string>
   <string name="reveal_solution">Show Solution</string>

app/src/main/res/values-pt-rBR/strings.xml

@@ -380,7 +380,7 @@
   <string name="new_hint_available">Nova dica disponível</string>
   <string name="no_new_hint_available">Nova dica disponível</string>
   <string name="show_hints_and_solution">Mostrar dicas e solução</string>
-  <string name="hints_andSolution_close_icon_description">Navegar para cima</string>
+  <string name="hints_and_solution_close_icon_description">Navegar para cima</string>
   <string name="hints_toolbar_title">Dicas</string>
   <string name="show_solution" fuzzy="true">Exibir</string>
   <string name="reveal_solution" fuzzy="true">Revelar Solução</string>

app/src/main/res/values-sw/strings.xml

@@ -356,7 +356,7 @@
   <string name="are_you_interested">Je, unavutiwa na:\n%s?</string>
   <string name="new_hint_available">Kidokezo kipya kinapatikana</string>
   <string name="show_hints_and_solution">Onyesha vidokezo na suluhisho</string>
-  <string name="hints_andSolution_close_icon_description">Nenda juu</string>
+  <string name="hints_and_solution_close_icon_description">Nenda juu</string>
   <string name="hints_toolbar_title">Vidokezo</string>
   <string name="reveal_solution" fuzzy="true">Fichua Suluhisho</string>
   <string name="reveal_hint" fuzzy="true">Fichua Kidokezo</string>

app/src/main/res/values/strings.xml

@@ -453,7 +453,7 @@
   <string name="no_new_hint_available">No new hint available</string>
   <string name="show_hints_and_solution">Show hints and solution</string>
   <string name="hint_list_item_number">Hint %s</string>
-  <string name="hints_andSolution_close_icon_description">Close</string>
+  <string name="hints_and_solution_close_icon_description">Close</string>
   <string name="hints_toolbar_title">Hints</string>
   <string name="show_solution">Show solution</string>
   <string name="reveal_solution">Show Solution</string>