Convert desktop files to JSON

In KF6, KPackage no longer reads the desktop files, but only json files

Task: https://phabricator.kde.org/T14558

wallpapers/Next/metadata.desktop

@@ -1,38 +0,0 @@
-[Desktop Entry]
-Name=Safe Landing
-Name[ar]=هبوط آمن
-Name[az]=Yumşaq eniş
-Name[bg]=Safe Landing
-Name[ca]=Aterratge segur
-Name[ca@valencia]=Aterratge segur
-Name[cs]=Bezpečné přistání
-Name[da]=Sikker landing
-Name[de]=Sichere Landung
-Name[en_GB]=Safe Landing
-Name[es]=Aterrizaje seguro
-Name[eu]=Lurreratze segurua
-Name[fi]=Turvallinen laskeutuminen
-Name[fr]=Atterrissage en douceur
-Name[ia]=Atterrage secur (Safe Landing)
-Name[it]=Atterraggio sicuro
-Name[ka]=უსაფრთხო დაჯდომა
-Name[ko]=안전한 착륙
-Name[nl]=Veilige landing
-Name[nn]=Trygg landing
-Name[pl]=Bezpieczne lądowanie
-Name[pt]=Aterragem Segura
-Name[pt_BR]=Pouso seguro
-Name[ro]=Aterizare ușoară
-Name[ru]=Safe Landing
-Name[sk]=Bezpečné pristátie
-Name[sl]=Varen pristanek
-Name[sv]=Säker landning
-Name[tr]=Güvenli İniş
-Name[uk]=Безпечне приземлення
-Name[x-test]=xxSafe Landingxx
-Name[zh_CN]=Safe Landing 着陆
-
-X-KDE-PluginInfo-Name=Next
-X-KDE-PluginInfo-Author=Louis Durrant
-X-KDE-PluginInfo-Email=foss@louisdurrant.co.uk
-X-KDE-PluginInfo-License=CC-BY-SA-4.0

wallpapers/Next/metadata.json

@@ -0,0 +1,44 @@
+{
+    "KPlugin": {
+        "Authors": [
+            {
+                "Email": "foss@louisdurrant.co.uk",
+                "Name": "Louis Durrant"
+            }
+        ],
+        "Id": "Next",
+        "License": "CC-BY-SA-4.0",
+        "Name": "Safe Landing",
+        "Name[ar]": "هبوط آمن",
+        "Name[az]": "Yumşaq eniş",
+        "Name[bg]": "Safe Landing",
+        "Name[ca@valencia]": "Aterratge segur",
+        "Name[ca]": "Aterratge segur",
+        "Name[cs]": "Bezpečné přistání",
+        "Name[da]": "Sikker landing",
+        "Name[de]": "Sichere Landung",
+        "Name[en_GB]": "Safe Landing",
+        "Name[es]": "Aterrizaje seguro",
+        "Name[eu]": "Lurreratze segurua",
+        "Name[fi]": "Turvallinen laskeutuminen",
+        "Name[fr]": "Atterrissage en douceur",
+        "Name[ia]": "Atterrage secur (Safe Landing)",
+        "Name[it]": "Atterraggio sicuro",
+        "Name[ka]": "უსაფრთხო დაჯდომა",
+        "Name[ko]": "안전한 착륙",
+        "Name[nl]": "Veilige landing",
+        "Name[nn]": "Trygg landing",
+        "Name[pl]": "Bezpieczne lądowanie",
+        "Name[pt]": "Aterragem Segura",
+        "Name[pt_BR]": "Pouso seguro",
+        "Name[ro]": "Aterizare ușoară",
+        "Name[ru]": "Safe Landing",
+        "Name[sk]": "Bezpečné pristátie",
+        "Name[sl]": "Varen pristanek",
+        "Name[sv]": "Säker landning",
+        "Name[tr]": "Güvenli İniş",
+        "Name[uk]": "Безпечне приземлення",
+        "Name[x-test]": "xxSafe Landingxx",
+        "Name[zh_CN]": "Safe Landing 着陆"
+    }
+}