refactor: improve code readability and maintainability in SDK options and icon picker

- Reformatted the fullAccess and chat tool presets in sdk-options.ts for better readability.
- Simplified the return statement in icon-picker.tsx for cleaner code.
- Removed the board-background-persistence.spec.ts test file as it is no longer needed.

apps/server/src/lib/sdk-options.ts

@@ -129,10 +129,30 @@ export const TOOL_PRESETS = {
   specGeneration: ['Read', 'Glob', 'Grep'] as const,
 
   /** Full tool access for feature implementation */
-  fullAccess: ['Read', 'Write', 'Edit', 'Glob', 'Grep', 'Bash', 'WebSearch', 'WebFetch', 'TodoWrite'] as const,
+  fullAccess: [
+    'Read',
+    'Write',
+    'Edit',
+    'Glob',
+    'Grep',
+    'Bash',
+    'WebSearch',
+    'WebFetch',
+    'TodoWrite',
+  ] as const,
 
   /** Tools for chat/interactive mode */
-  chat: ['Read', 'Write', 'Edit', 'Glob', 'Grep', 'Bash', 'WebSearch', 'WebFetch', 'TodoWrite'] as const,
+  chat: [
+    'Read',
+    'Write',
+    'Edit',
+    'Glob',
+    'Grep',
+    'Bash',
+    'WebSearch',
+    'WebFetch',
+    'TodoWrite',
+  ] as const,
 } as const;
 
 /**