kimgio: enable JPEG XL format

BUG: 453131

generators/kimgio/libokularGenerator_kimgio.json

@@ -249,7 +249,8 @@
             "image/x-bzeps",
             "image/avif",
             "image/heif",
-            "image/webp"
+            "image/webp",
+            "image/jxl"
         ],
         "Name": "Image Backend",
         "Name[ar]": "خلفية الصور",

generators/kimgio/okularApplication_kimgio.desktop

@@ -1,5 +1,5 @@
 [Desktop Entry]
-MimeType=image/bmp;image/x-dds;image/x-eps;image/x-exr;image/gif;image/x-hdr;image/x-ico;image/jp2;image/jpeg;video/x-mng;image/x-portable-bitmap;image/x-pcx;image/x-portable-graymap;image/png;image/x-portable-pixmap;image/x-psd;image/x-rgb;image/x-tga;image/tiff;image/x-xbitmap;image/x-xcf;image/x-xpixmap;image/x-gzeps;image/x-bzeps;image/avif;image/heif;image/webp;
+MimeType=image/bmp;image/x-dds;image/x-eps;image/x-exr;image/gif;image/x-hdr;image/x-ico;image/jp2;image/jpeg;video/x-mng;image/x-portable-bitmap;image/x-pcx;image/x-portable-graymap;image/png;image/x-portable-pixmap;image/x-psd;image/x-rgb;image/x-tga;image/tiff;image/x-xbitmap;image/x-xcf;image/x-xpixmap;image/x-gzeps;image/x-bzeps;image/avif;image/heif;image/webp;image/jxl;
 Terminal=false
 Name=Okular
 Name[ar]=اوكلار

generators/kimgio/okularKimgio.desktop

@@ -65,4 +65,4 @@ Name[zh_TW]=文件檢視_Okular
 X-KDE-ServiceTypes=KParts/ReadOnlyPart
 X-KDE-Library=okularpart
 Type=Service
-MimeType=image/bmp;image/x-dds;image/x-eps;image/x-exr;image/gif;image/x-hdr;image/x-ico;image/jp2;image/jpeg;video/x-mng;image/x-portable-bitmap;image/x-pcx;image/x-portable-graymap;image/png;image/x-portable-pixmap;image/x-psd;image/x-rgb;image/x-tga;image/tiff;image/x-xbitmap;image/x-xcf;image/x-xpixmap;image/x-gzeps;image/x-bzeps;image/avif;image/heif;image/webp;
+MimeType=image/bmp;image/x-dds;image/x-eps;image/x-exr;image/gif;image/x-hdr;image/x-ico;image/jp2;image/jpeg;video/x-mng;image/x-portable-bitmap;image/x-pcx;image/x-portable-graymap;image/png;image/x-portable-pixmap;image/x-psd;image/x-rgb;image/x-tga;image/tiff;image/x-xbitmap;image/x-xcf;image/x-xpixmap;image/x-gzeps;image/x-bzeps;image/avif;image/heif;image/webp;image/jxl;

generators/kimgio/org.kde.mobile.okular_kimgio.desktop

@@ -1,5 +1,5 @@
 [Desktop Entry]
-MimeType=image/bmp;image/x-dds;image/x-eps;image/x-exr;image/gif;image/x-hdr;image/x-ico;image/jp2;image/jpeg;video/x-mng;image/x-portable-bitmap;image/x-pcx;image/x-portable-graymap;image/png;image/x-portable-pixmap;image/x-psd;image/x-rgb;image/x-tga;image/tiff;image/x-xbitmap;image/x-xcf;image/x-xpixmap;image/x-gzeps;image/x-bzeps;image/avif;image/heif;image/webp;
+MimeType=image/bmp;image/x-dds;image/x-eps;image/x-exr;image/gif;image/x-hdr;image/x-ico;image/jp2;image/jpeg;video/x-mng;image/x-portable-bitmap;image/x-pcx;image/x-portable-graymap;image/png;image/x-portable-pixmap;image/x-psd;image/x-rgb;image/x-tga;image/tiff;image/x-xbitmap;image/x-xcf;image/x-xpixmap;image/x-gzeps;image/x-bzeps;image/avif;image/heif;image/webp;image/jxl;
 Name=Reader
 Name[ar]=التصيير
 Name[az]=Oxuyucu