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/components/core/issues-view.tsx

@@ -502,8 +502,8 @@ export const IssuesView: React.FC<Props> = ({
                   title="Create a new issue"
                   description={
                     <span>
-                      Use <pre className="inline rounded bg-gray-200 px-2 py-1">C</pre> shortcut to
-                      create a new issue
+                      Use <pre className="inline rounded bg-brand-surface-2 px-2 py-1">C</pre>{" "}
+                      shortcut to create a new issue
                     </span>
                   }
                   Icon={PlusIcon}