fix: Wrong setup of Cursor rules

After testing BMAD Method in Cursor rules with the existing setup of the rule
I have noticed that it was not actually using the right prompt. That was noticed
before it was not returning the available commands when opening a new chat and
refering to the agent I needed. I did the changes in my project and the fix wa
to change to "Apply Manually" so the rule `@<agent-name>` has to be referenced
from the chat window, similar to what you do with Claude Code.

tools/installer/lib/ide-base-setup.js

@@ -189,8 +189,6 @@ class BaseIdeSetup {
     if (format === 'mdc') {
       // MDC format for Cursor
       content = '---\n';
-      content += 'description: \n';
-      content += 'globs: []\n';
       content += 'alwaysApply: false\n';
       content += '---\n\n';
       content += `# ${agentId.toUpperCase()} Agent Rule\n\n`;