jvoisin 6da3c3e200 Fix a gcc warning about copy ...

```
/home/jvoisin/dev/openmw/openmw/components/fontloader/fontloader.cpp:532:29: warning: loop variable '[key, value]' creates a copy from type 'std::pair<const int, int> const' [-Wrange-loop-construct]
            for (const auto [key, value] : additional)
                            ^
/home/jvoisin/dev/openmw/openmw/components/fontloader/fontloader.cpp:532:18: note: use reference type 'std::pair<const int, int> const &' to prevent copying
            for (const auto [key, value] : additional)
                 ^~~~~~~~~~~~~~~~~~~~~~~~~
                            &
1 warning generated.
```

2023-05-22 17:18:43 +02:00

..

fontloader.cpp

Fix a gcc warning about copy

2023-05-22 17:18:43 +02:00

fontloader.hpp

Use string_view in more places and reduce the number of empty string literals

2023-05-21 16:39:32 +02:00