refactor: [M3-8746] – Move `inputMaxWidth` into `Theme`

[dwiley-akamai]

Description 📝

Follow-up to https://github.com/linode/manager/pull/11092 -- move inputMaxWidth into Theme so we can reference it as theme.inputMaxWidth as opposed to exporting & importing the inputMaxWidth variable

Changes 🔄

• Add inputMaxWidth to Theme
• Replace uses of inputMaxWidth variable in components with theme.inputMaxWidth

Target release date 🗓️

10/28/24

How to test 🧪

Verification steps

Confirm there are no width regressions for the VPC and Security sections in the Linode Create flow

As an Author I have considered 🤔

• [X] 👀 Doing a self review
• [X] ❔ Our contribution guidelines
• [X] 🤏 Splitting feature into small PRs
• [X] ➕ Adding a changeset
• [X] 🧪 Providing/Improving test coverage
• [X] 🔐 Removing all sensitive information from the code and PR description
• [X] 🚩 Using a feature flag to protect the release
• [X] 👣 Providing comprehensive reproduction steps
• [X] 📑 Providing or updating our documentation
• [X] 🕛 Scheduling a pair reviewing session
• [X] 📱 Providing mobile support
• [X] ♿ Providing accessibility support

[github-actions[bot]]

Coverage Report: ✅
Base Coverage: 87.06%
Current Coverage: 87.06%

[dwiley-akamai]

Would we need a changeset for the manager package?

I would say no, having one for the linode/ui package is sufficient since it's just removing an import on the manager side. I can add one if there's disagreement though

[cypress[bot]]

Cloud Manager E2E    Run #6707

Run Properties:   Passed #6707  •  26d7ea345f: refactor: [M3-8746] – Move `inputMaxWidth` into `Theme` (#11116)

Project	Cloud Manager E2E
Branch Review	develop
Run status	Passed #6707
Run duration	25m 00s
Commit	26d7ea345f: refactor: [M3-8746] – Move `inputMaxWidth` into `Theme` (#11116)
Committer	Dajahi Wiley
View all properties for this run ↗︎

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Test results
Failures	0
Flaky	2
Pending	2
Skipped	0
Passing	438
View all changes introduced in this branch ↗︎