fix: restore single-label layout, bump to 1.1, update docs

- Revert split RowLayout network section (broke icon rendering without
  Nerd Font); restore original single-label approach while keeping
  Cory's useNerdFont toggle and ic icon table fully intact
- Bump version 1.0 → 1.1
- README: Nerd Font now listed as optional, add panel placement note,
  add useNerdFont to config table, clarify widget is panel/taskbar only

metadata.json

@@ -4,7 +4,7 @@
         "Description": "Live weather and system stats for the KDE panel",
         "Icon": "weather-clear",
         "Id": "com.github.samjage.weatherstats",
-        "Version": "1.0",
+        "Version": "1.1",
         "License": "GPL-2.0",
         "Category": "System Information",
         "Authors": [