feat: themes (#902)

* chore: add next theme and initial setup

* chore: add dark mode colors to layouts

* chore: user general setting page theming

* chore: dashboard theming

* chore: project page theming

* chore: workspace setting page theming

* chore: my issue page theming

* chore: cmdk theming

* chore: change hardcode bg and text color to theme

* chore: change color name according to the design

* style: fix card in the dashboard

* style: fix merge conflict design issues

* style: add light high contrast and dark high contrast

* style: fix cmd k menu color and selection

* feat: change theme from cmdk menu

* chore: add multiple theme field to custom theme

* chore: removed custom theming

* fix: build error

---------

Co-authored-by: Saheb Giri <iamsahebgiri@gmail.com>

apps/app/constants/themes.ts

@@ -0,0 +1,35 @@
+export const THEMES = [
+  "light",
+  "dark",
+  "light-contrast",
+  "dark-contrast",
+  // "custom"
+];
+
+export const THEMES_OBJ = [
+  {
+    value: "light",
+    label: "Light",
+    type: "light",
+  },
+  {
+    value: "dark",
+    label: "Dark",
+    type: "dark",
+  },
+  {
+    value: "light-contrast",
+    label: "Light High Contrast",
+    type: "light",
+  },
+  {
+    value: "dark-contrast",
+    label: "Dark High Contrast",
+    type: "dark",
+  },
+  // {
+  //   value: "custom",
+  //   label: "Custom",
+  //   type: "light",
+  // },
+];