Update cheatsheets

tldr/linux/plasma-apply-wallpaperimage

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# plasma-apply-wallpaperimage
+
+> Switch Plasma wallpaper.
+> More information: <https://invent.kde.org/plasma/plasma-workspace>.
+
+- Apply a wallpaper:
+
+`plasma-apply-wallpaperimage {{/path/to/image}}`
+
+- Apply a wallpaper with a fill mode:
+
+`plasma-apply-wallpaperimage --fill-mode {{stretch|preserveAspectFit|preserveAspectCrop|tile|tileVertically|tileHorizontally|pad}} {{/path/to/image}}`
+
+- Display help:
+
+`plasma-apply-wallpaperimage --help`