Fixes Native Ads template for iOS | Increases minimum Flutter version (…

…#1428)

* Fixed iOS Native Ads Template. Updated min Flutter version

* Updated CHANGELOG

GMA SDK major version update 7.0.0 (#1369)

* Fix Native Ads templates

* Updated iOS project, updated inline banner ad unit in example app

* Correctly set new low bounds for Flutter and Dart versions

* Updated minSdk for Android to make it compatible with Flutter versions

* Format fix

* Added more contraints on Native Ad template to avoid unexpected button behaviors

* Made the release a major release (7.0.0)

* Updated Android GMA SDK to 24.9.0

* Modified layout contraints to let CTA button in Native Ad to not be pushed away

Update dart format of samples

Rollback to dart's Color int attributes to avoid building issues (#1238)

* Returning to previous Color attributes to avoid low bound issues

* Version bumped for patch release

* Downgraded some dependencies to make it compatible with older versions of dart SDK

Version bumping google_mobile_ads (#1230)

* Version bumping the main gma Flutter plugin

Version bumping pubspec

[Sample] Updated test ad unit id for Android inline adaptive banner (#…

…1119)

* Updated ad id for banner sample

* Updated android only

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Co-authored-by: Justin Malandruccolo <jmalandruccolo@google.com>

[Sample] Updated test ad unit id for Android inline adaptive banner (#…

…1119)

* Updated ad id for banner sample

* Updated android only

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Co-authored-by: Justin Malandruccolo <jmalandruccolo@google.com>

Updated samples to plugin 4.0.0 (#975)

Co-authored-by: Justin Malandruccolo <jmalandruccolo@google.com>

Added @LTPhantom to CODEOWNERS (#933)

* Added @LTPhantom to CODEOWNERS

* Removed not found user