chore(issues): refine explanations

[caugner]

Description

Refines the issue explanations (flaws), in particular including the macro name.

Motivation

Make them clearer and add missing context, as they show up in the PR Review Companion comment in content PRs.

Additional details

# Regular issues.

-{url} is ill cased
+Link {url} is ill cased

-{url} is a redirect
+Link {url} is a redirect

-Can't resolve {url}
+Link {url} doesn't resolve

# Macro issues.

-Can't resolve {url}
+Macro {macroName} produces link {url} which doesn't resolve

-Macro produces link {url} which is a redirect
+Macro {macroName} produces link {url} which is a redirect

-{url} is ill cased
+Macro {} produces link {} which is ill cased

-Argument ({}) is not valid.
+Macro {macroName} received argument ({argument}) which is not valid

Related issues and pull requests