Neovim template enhancements (#2078)

* feat: add neovim-lualine template, set vim.o.background automatically based on dms light/dark mode

* feat(matugen): add option to follow dms background color or not on neovim

* chore: regenerate settings and translation index after merging master

quickshell/Common/SettingsData.qml

@@ -494,6 +494,7 @@ Singleton {
                 "harmony": 0.5
             }
         })
+    property bool matugenTemplateNeovimSetBackground: true
 
     property bool showDock: false
     property bool dockAutoHide: false

quickshell/Common/settings/SettingsSpec.js

@@ -305,6 +305,7 @@ var SPEC = {
             light: { baseTheme: "github_light", harmony: 0.5 }
         }
     },
+    matugenTemplateNeovimSetBackground: true,
 
     showDock: { def: false },
     dockAutoHide: { def: false },