Use Qt built-in non-breaking space variable

src/base/unicodestrings.h

@@ -37,7 +37,6 @@
 inline const QString C_COPYRIGHT = u"©"_s;
 inline const QString C_INEQUALITY = u"≠"_s;
 inline const QString C_INFINITY = u"∞"_s;
-inline const QString C_NON_BREAKING_SPACE = u" "_s;
 inline const QString C_THIN_SPACE = u" "_s;
 inline const QString C_UTP = u"μTP"_s;
 

src/base/utils/misc.cpp

@@ -267,8 +267,7 @@ QString Utils::Misc::friendlyUnit(const qint64 bytes, const bool isSpeed, const
 
     const int digitPrecision = (precision >= 0) ? precision : friendlyUnitPrecision(result->unit);
     return Utils::String::fromDouble(result->value, digitPrecision)
-           + C_NON_BREAKING_SPACE
-           + unitString(result->unit, isSpeed);
+           + QChar::Nbsp + unitString(result->unit, isSpeed);
 }
 
 int Utils::Misc::friendlyUnitPrecision(const SizeUnit unit)

src/gui/properties/speedplotview.cpp

@@ -94,8 +94,7 @@ namespace
         // check is there need for digits after decimal separator
         const int precision = (argValue < 10) ? friendlyUnitPrecision(unit) : 0;
         return QLocale::system().toString(argValue, 'f', precision)
-               + C_NON_BREAKING_SPACE
-               + unitString(unit, true);
+               + QChar::Nbsp + unitString(unit, true);
     }
 }