adding theming to client and bug fixes

packages/web/src/server/theme.ts

@@ -0,0 +1,29 @@
+import Config from "@rahoot/socket/services/config"
+
+export type ThemeSettings = {
+  brandName: string
+  backgroundUrl: string | null
+}
+
+export const getTheme = (): ThemeSettings => {
+  const theme = Config.theme()
+  return {
+    brandName: theme.brandName || "Rahoot",
+    backgroundUrl:
+      typeof theme.backgroundUrl === "string" && theme.backgroundUrl.length > 0
+        ? theme.backgroundUrl
+        : null,
+  }
+}
+
+export const saveTheme = (payload: Partial<ThemeSettings>): ThemeSettings => {
+  const current = getTheme()
+  const merged = {
+    brandName: payload.brandName ?? current.brandName,
+    backgroundUrl:
+      payload.backgroundUrl === undefined
+        ? current.backgroundUrl
+        : payload.backgroundUrl,
+  }
+  return Config.saveTheme(merged)
+}