chore(app): cleanup tailwind vs pure css

packages/app/src/index.css

@@ -1,84 +1 @@
 @import "@opencode-ai/ui/styles/tailwind";
-
-:root {
-  a {
-    cursor: default;
-  }
-}
-
-[data-component="markdown"] ul {
-  list-style: disc outside;
-  padding-left: 1.5rem;
-}
-
-[data-component="markdown"] ol {
-  list-style: decimal outside;
-  padding-left: 1.5rem;
-}
-
-[data-component="markdown"] li > p:first-child {
-  display: inline;
-  margin: 0;
-}
-
-[data-component="markdown"] li > p + p {
-  display: block;
-  margin-top: 0.5rem;
-}
-
-*[data-tauri-drag-region] {
-  app-region: drag;
-}
-
-.session-scroller::-webkit-scrollbar {
-  width: 10px !important;
-  height: 10px !important;
-}
-
-.session-scroller::-webkit-scrollbar-track {
-  background: transparent !important;
-  border-radius: 5px !important;
-}
-
-.session-scroller::-webkit-scrollbar-thumb {
-  background: var(--border-weak-base) !important;
-  border-radius: 5px !important;
-  border: 3px solid transparent !important;
-  background-clip: padding-box !important;
-}
-
-.session-scroller::-webkit-scrollbar-thumb:hover {
-  background: var(--border-weak-base) !important;
-}
-
-.session-scroller {
-  scrollbar-width: thin !important;
-  scrollbar-color: var(--border-weak-base) transparent !important;
-}
-
-/* Wider dialog variant for release notes modal */
-[data-component="dialog"]:has(.dialog-release-notes) {
-  padding: 20px;
-  box-sizing: border-box;
-
-  [data-slot="dialog-container"] {
-    width: min(100%, 720px);
-    height: min(100%, 400px);
-    margin-top: -80px;
-
-    [data-slot="dialog-content"] {
-      min-height: auto;
-      overflow: hidden;
-      height: 100%;
-      border: none;
-      box-shadow: var(--shadow-lg-border-base);
-    }
-
-    [data-slot="dialog-body"] {
-      overflow: hidden;
-      height: 100%;
-      display: flex;
-      flex-direction: row;
-    }
-  }
-}