EPIC: Restructure the examples to use code tabs

Proposal

In WireMock documentation, there are A LOT of examples where JSON and Code examples are placed in separate examples which takes a lot of vertical space and complicates the documentation. Instead of that, it would be nice if the examples were put into recently introduced Code Tabs like this one:

Steps

Each case can be submitted as a separate pull request:

• Find a case when two examples (usually JSON and Java) are placed sequentially
• Merge examples into a single block using the {codetabs} macro
• Copy-edit text around examples to ensure it is consistent

Example of a patch: https://github.com/wiremock/wiremock.org/pull/165

References

No response