fix: apply font-mono to code-content textareas

CodeRabbit flagged on #72 that two textareas hold code-like content:
- script-command in ProjectScriptsControl.tsx
- commit-message dialog in GitActionsControl.tsx

After narrowing the global `textarea` monospace rule, both would have
rendered in DM Sans. Add explicit `className="font-mono"` so they keep
the Geist Mono readability regardless of the global rule.

Author: aaditagrawal

apps/web/src/components/GitActionsControl.tsx

@@ -1121,6 +1121,7 @@ export default function GitActionsControl({
             <div className="space-y-1">
               <p className="text-xs font-medium">Commit message (optional)</p>
               <Textarea
+                className="font-mono"
                 value={dialogCommitMessage}
                 onChange={(event) => setDialogCommitMessage(event.target.value)}
                 placeholder="Leave empty to auto-generate"

apps/web/src/components/ProjectScriptsControl.tsx

@@ -448,6 +448,7 @@ export default function ProjectScriptsControl({
                 <Label htmlFor="script-command">Command</Label>
                 <Textarea
                   id="script-command"
+                  className="font-mono"
                   placeholder="bun test"
                   value={command}
                   onChange={(event) => setCommand(event.target.value)}