small code cleanup and added components/ folder for reusable code

widgets/bgDate/BgDate.qml

@@ -1,8 +1,8 @@
 import QtQuick
 import Quickshell
 import Quickshell.Wayland
-import Quickshell.Io
 import "../../config" as Cfg
+import "../../components"
 
 PanelWindow {
     id: root
@@ -17,46 +17,12 @@ PanelWindow {
     WlrLayershell.exclusiveZone: -1
     mask: Region {}
 
-    readonly property string tz: Cfg.Config.timezone || ""
-
-    property int tzOffsetMin: 0
+    TimezoneProvider { id: timezone }
 
     property string fullDateString: ""
     property int    typedChars:     0
     property string secondsString:  ""
 
-    onTzOffsetMinChanged: {
-        updateDate(new Date())
-    }
-
-    Process {
-        id: tzProc
-        command: ["bash", "-c", "TZ=" + (root.tz || "UTC") + " date +%z"]
-        running: root.tz !== ""
-        stdout: SplitParser {
-            onRead: data => {
-                var s = data.trim()          
-                if (s.length < 5) return
-                var sign = (s[0] === "-") ? -1 : 1
-                var h    = parseInt(s.substring(1, 3), 10)
-                var m    = parseInt(s.substring(3, 5), 10)
-                root.tzOffsetMin = sign * (h * 60 + m)
-            }
-        }
-    }
-
-    Timer {
-        interval: 1800000; running: root.tz !== ""; repeat: true
-        onTriggered: tzProc.running = true
-    }
-
-    function toTz(date) {
-        if (!tz) return date
-        return new Date(date.getTime()
-            + date.getTimezoneOffset() * 60000
-            + root.tzOffsetMin * 60000)
-    }
-
     function startTyping() {
         typedChars          = 0
         secondsText.opacity = 0
@@ -65,14 +31,14 @@ PanelWindow {
 
     function updateDate(d) {
         let now = d || new Date()
-        fullDateString = toTz(now).toLocaleDateString(Qt.locale(),
+        fullDateString = timezone.toTz(now).toLocaleDateString(Qt.locale(),
             Cfg.Config.dateFormat === "DMY" ? "dddd, d MMMM yyyy" : "dddd, MMMM d, yyyy")
         startTyping()
     }
 
     Component.onCompleted: {
         let d = new Date()
-        secondsString = Qt.formatTime(toTz(d), "hh:mm:ss")
+        secondsString = Qt.formatTime(timezone.toTz(d), "hh:mm:ss")
         updateDate(d)
     }
 
@@ -140,7 +106,7 @@ PanelWindow {
         repeat: true
         onTriggered: {
             let d = new Date()
-            let tzd = toTz(d)
+            let tzd = timezone.toTz(d)
             secondsString = Qt.formatTime(tzd, "hh:mm:ss")
             if (tzd.getHours() === 0 && tzd.getMinutes() === 0 && tzd.getSeconds() === 0)
                 updateDate(d)