Change default theme to OneDark like

src/qml/styles/OneDark.qml

@@ -0,0 +1,55 @@
+/* 
+ * Mirai. Copyright (C) 2024 Vyn
+ * This file is licensed under version 3 of the GNU General Public License (GPL-3.0-only)
+ * The license can be found in the LICENSE file or at https://www.gnu.org/licenses/gpl-3.0.txt
+ */
+
+pragma Singleton
+import QtQuick 2.5
+
+//black = "#181a1f",
+//bg0 = "#282c34",
+//bg1 = "#31353f",
+//bg2 = "#393f4a",
+//bg3 = "#3b3f4c",
+//bg_d = "#21252b",
+//bg_blue = "#73b8f1",
+//bg_yellow = "#ebd09c",
+//fg = "#abb2bf",
+//purple = "#c678dd",
+//green = "#98c379",
+//orange = "#d19a66",
+//blue = "#61afef",
+//yellow = "#e5c07b",
+//cyan = "#56b6c2",
+//red = "#e86671",
+//grey = "#5c6370",
+//light_grey = "#848b98",
+//dark_cyan = "#2b6f77",
+//dark_red = "#993939",
+//dark_yellow = "#93691d",
+//dark_purple = "#8a3fa0",
+//diff_add = "#31392b",
+//diff_delete = "#382b2c",
+//diff_change = "#1c3448",
+//diff_text = "#2c5372",
+
+QtObject {
+    property string background: "#282c34"
+	property string pane: "#21252b"
+	property string text: "#abb2bf"
+	property string textPlaceholder: "#5c6370"
+	property string accent: "#2b6f77"
+	property string fieldBackground: "#393f4a"
+	property string buttonIcon: "#2b6f77"
+	property string buttonBackground: "#31353f"
+	property string buttonHovered:  "#3b3f4c"
+	property string filterHovered: "#5c6370"
+	property string filterSelected: "#3b3f4c"
+	property string modalBorder: "#8a3fa0"
+	property string calendarLines: "#3b3f4c"
+	property string calendarCurrentTime: "#e86671"
+	property string calendarEvent: "#3b3f4c"
+	property string green: "#98c379"
+	property string red: "#e86671"
+}