No Such Module app_links

[ColeMurray]

Describe the bug
A clear and concise description of what the bug is.
iOS build is failing due to "no such module app_links".

This appears to be related to this commit: 440c93f

which introduced app links, but doesn't appear to have added a dependency.

To Reproduce
Steps to reproduce the behavior:

1. Download repo
2. Follow docs install setup
3. Open xcode
4. Build failing

Current behavior
A clear and concise description of what is currently happening
Xcode is failing to build the iOS application due to missing app_links

Expected behavior
A clear and concise description of what you expected to happen.

build should pass

[mdmohsin7]

Can you please try running flutter clean && flutter pub get in the app directory before running it from xcode again? Sometimes the build cache causes issues