general: Code formatting improvements

Slight improvements to readability.

Dropped suggestions for string_view (settings.h:101), pass by value
(settings.h:82), reverting double to a float (config.cpp:316), and other
smaller ones, some out of scope.

Addresses review feedback.

Co-authored-by: Ameer J <52414509+ameerj@users.noreply.github.com>

src/common/settings.h

@@ -155,8 +155,7 @@ public:
 
     /**
      * Tells this setting to represent either the global or custom setting when other member
-     * functions are used. Setting to_global to true means using the global setting, to false
-     * false for the custom setting.
+     * functions are used.
      *
      * @param to_global Whether to use the global or custom setting.
      */