v0.3.0

• bump flutter to 3.7
• [exe] add template support for all innosetup 6.x default languages (#102)
• Improve command usability (help texts, null checks, misc) (#106)
• apk & app maker support profile mode.
• flutter_distributor command add version-check flag
• [AppImage] Use appimagetool to bundle AppImage (#109)
• Refactor flutter_distributor