Silence data loss warning (#82686)

* Silence data loss warning

* Improvements

Author: PatrikLundell

src/item_factory.cpp

@@ -3410,7 +3410,7 @@ void islot_comestible::deserialize( const JsonObject &jo )
     optional( jo, was_loaded, "calories", default_nutrition.calories );
 
     optional( jo, was_loaded, "contamination", contamination,
-              weighted_string_id_reader<diseasetype_id, float> {1.0} );
+              weighted_string_id_reader<diseasetype_id, float> { 1.0f } );
     optional( jo, was_loaded, "primary_material", primary_material, material_id::NULL_ID() );
     optional( jo, was_loaded, "vitamins", default_nutrition.vitamins_,
               vitamins_reader {} );

src/material.cpp

@@ -112,7 +112,7 @@ void material_type::load( const JsonObject &jsobj, std::string_view )
     optional( jsobj, was_loaded, "soft", _soft, false );
     optional( jsobj, was_loaded, "uncomfortable", _uncomfortable, false );
 
-    optional( jsobj, was_loaded, "vitamins", _vitamins, weighted_string_id_reader<vitamin_id, double> { 1 } );
+    optional( jsobj, was_loaded, "vitamins", _vitamins, weighted_string_id_reader<vitamin_id, double> { 1.0 } );
 
     mandatory( jsobj, was_loaded, "bash_dmg_verb", _bash_dmg_verb );
     mandatory( jsobj, was_loaded, "cut_dmg_verb", _cut_dmg_verb );