[Gemfile] Add cocoapods_debug

[ISSUE_TEMPLATE] Bigger headings

Don't be that shy. These bigger headings bring an underline with GitHub's stylesheets which gives the different sections better visual distinction.

Fix repo lint for path arguments

Propagate the CocoaPods version to the prepare_command

Move the case statement to the top of the file, where we set "TARGET_DEVICE_ARGS" so it's available to all scripts, and add it to the `ibtool` storyboard processing step.

[ISSUE_TEMPLATE] Initial proposal

Improve de-duplication for non-trivial cases

Some of these might not actually return nothing, but none of these methods give a guarantee to return a certain result.

Reduces code complexity a bit.