fix: case senstive framework names (#120)

Fixes #119 

#116 make the names of the framework uppercase, but the default string
was still 'react' and `getFrameWorkByName` is case sensitive.

Build and run the cli, and check the results vs `pnpm create
tsrouter-app@0.15.8` (currrent latest)

Author: DogPawHat

packages/cta-cli/src/cli.ts

@@ -191,7 +191,7 @@ export function cli({
         }
         return value
       },
-      defaultFramework || 'react',
+      defaultFramework || 'React',
     )
   }