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/pages/workspace-member-invitation/[invitationId].tsx

@@ -61,7 +61,7 @@ const WorkspaceInvitation: NextPage = () => {
         {invitationDetail ? (
           <>
             {error ? (
-              <div className="flex w-full flex-col space-y-4 rounded border bg-gray-50 px-4 py-8 text-center shadow-2xl md:w-1/3">
+              <div className="flex w-full flex-col space-y-4 rounded border border-brand-base bg-brand-base px-4 py-8 text-center shadow-2xl md:w-1/3">
                 <h2 className="text-xl uppercase">INVITATION NOT FOUND</h2>
               </div>
             ) : (