Fix for rad init UI issue on a small terminal

[vishwahiremat]

Description

• Removed hard coded values for width and height for list model.
• Dynamically change the width or height of the list model depending on the terminal dimensions.

Type of change

• This pull request fixes a bug in Radius and has an approved issue (issue link required).

Fixes: https://github.com/radius-project/radius/issues/6492

Contributor checklist

Please verify that the PR meets the following requirements, where applicable:

• [ ] An overview of proposed schema changes is included in a linked GitHub issue.
• [ ] A design document PR is created in the design-notes repository, if new APIs are being introduced.
• [ ] If applicable, design document has been reviewed and approved by Radius maintainers/approvers.
• [ ] A PR for the samples repository is created, if existing samples are affected by the changes in this PR.
• [ ] A PR for the documentation repository is created, if the changes in this PR affect the documentation or any user facing updates are made.
• [ ] A PR for the recipes repository is created, if existing recipes are affected by the changes in this PR.

[radius-functional-tests[bot]]

Radius functional test overview

:mag: Go to test action run

Name	Value
Repository	vishwahiremat/radius
Commit ref	1b4081adb8c71caba92b64a914fa938b02ba2901
Unique ID	func88913982fb
Image tag	pr-func88913982fb

Click here to see the list of tools in the current test run

* gotestsum 1.12.0 * KinD: v0.20.0 * Dapr: 1.12.0 * Azure KeyVault CSI driver: 1.4.2 * Azure Workload identity webhook: 1.3.0 * Bicep recipe location `ghcr.io/radius-project/dev/test/testrecipes/test-bicep-recipes/:pr-func88913982fb` * Terraform recipe location `http://tf-module-server.radius-test-tf-module-server.svc.cluster.local/.zip` (in cluster) * applications-rp test image location: `ghcr.io/radius-project/dev/applications-rp:pr-func88913982fb` * dynamic-rp test image location: `ghcr.io/radius-project/dev/dynamic-rp:pr-func88913982fb` * controller test image location: `ghcr.io/radius-project/dev/controller:pr-func88913982fb` * ucp test image location: `ghcr.io/radius-project/dev/ucpd:pr-func88913982fb` * deployment-engine test image location: `ghcr.io/radius-project/deployment-engine:latest`

Test Status

:hourglass: Building Radius and pushing container images for functional tests... :white_check_mark: Container images build succeeded :hourglass: Publishing Bicep Recipes for functional tests... :white_check_mark: Recipe publishing succeeded :hourglass: Starting corerp-cloud functional tests... :hourglass: Starting ucp-cloud functional tests... :white_check_mark: ucp-cloud functional tests succeeded :white_check_mark: corerp-cloud functional tests succeeded

[radius-functional-tests[bot]]

Radius functional test overview

:mag: Go to test action run

Name	Value
Repository	vishwahiremat/radius
Commit ref	15c39eaaed45bca8b369324a8aafd59f7456be5e
Unique ID	func9cba7370fe
Image tag	pr-func9cba7370fe

Click here to see the list of tools in the current test run

* gotestsum 1.12.0 * KinD: v0.20.0 * Dapr: 1.12.0 * Azure KeyVault CSI driver: 1.4.2 * Azure Workload identity webhook: 1.3.0 * Bicep recipe location `ghcr.io/radius-project/dev/test/testrecipes/test-bicep-recipes/:pr-func9cba7370fe` * Terraform recipe location `http://tf-module-server.radius-test-tf-module-server.svc.cluster.local/.zip` (in cluster) * applications-rp test image location: `ghcr.io/radius-project/dev/applications-rp:pr-func9cba7370fe` * dynamic-rp test image location: `ghcr.io/radius-project/dev/dynamic-rp:pr-func9cba7370fe` * controller test image location: `ghcr.io/radius-project/dev/controller:pr-func9cba7370fe` * ucp test image location: `ghcr.io/radius-project/dev/ucpd:pr-func9cba7370fe` * deployment-engine test image location: `ghcr.io/radius-project/deployment-engine:latest`

Test Status

:hourglass: Building Radius and pushing container images for functional tests... :white_check_mark: Container images build succeeded :hourglass: Publishing Bicep Recipes for functional tests... :white_check_mark: Recipe publishing succeeded :hourglass: Starting corerp-cloud functional tests... :hourglass: Starting ucp-cloud functional tests... :white_check_mark: ucp-cloud functional tests succeeded :white_check_mark: corerp-cloud functional tests succeeded