fix: remove unsupported iOS/Android language flags from flutter create

[noblebuildsai]

Problem

When creating a Flutter project using:
get create project:"my cool project"

the CLI was passing -i swift -a kotlin to flutter create, which caused the
following error:

The "ios-language" option is only supported for "--template=plugin"

Solution

Removed the -i and -a flags from the flutter create command because:

• These flags are only supported for plugin templates (--template=plugin)
• For regular Flutter projects, Flutter already defaults to Swift and Kotlin
• Passing these flags was unnecessary and caused project creation to fail

Testing

• Tested locally by creating a project with spaces in the name
• Project creation now succeeds without errors
• Flutter still uses Swift/Kotlin by default (as expected)