INT-2055 Migrate /availability/index page

[hbjORbj]

What does this PR do?

• Migrate apps/web/pages/availability/index.tsx page into apps/web/app/availability-1/page.tsx and apps/web/app/availability-1/layout.tsx.
• Makes apps/web/pages/availability/index.tsx a client component.
• Use Next13-compatible trpc client defined in @calcom/web/app/_trpc/client rather than the incompatible trpc client defined in @calcom/trpc/react.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• Chore (refactoring code, technical debt, workflow improvements)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How should this be tested?

• Navigate to http://localhost:3000/availability-1 and test various mutations such as creating or editing

Mandatory Tasks

• Make sure you have self-reviewed the code. A decent size PR without self-review might be rejected.

[github-actions]

Hey there and thank you for opening this pull request! 👋🏼

We require pull request titles to follow the Conventional Commits specification and it looks like your proposed title needs to be adjusted.

Details:

No release type found in pull request title "INT-2055 Migrate `/availability/index` page". Add a prefix to indicate what kind of release this pull request corresponds to. For reference, see https://www.conventionalcommits.org/

Available types:
 - feat: A new feature
 - fix: A bug fix
 - docs: Documentation only changes
 - style: Changes that do not affect the meaning of the code (white-space, formatting, missing semi-colons, etc)
 - refactor: A code change that neither fixes a bug nor adds a feature
 - perf: A code change that improves performance
 - test: Adding missing tests or correcting existing tests
 - build: Changes that affect the build system or external dependencies (example scopes: gulp, broccoli, npm)
 - ci: Changes to our CI configuration files and scripts (example scopes: Travis, Circle, BrowserStack, SauceLabs)
 - chore: Other changes that don't modify src or test files
 - revert: Reverts a previous commit