DX: rename `PropShape` → `InputShape` + `PropSource` → `InputSource`, and `LinkedPropSource` *ain't* like `*PropSource`

Overview

Given your enthusiastic review of 📌 Rename `SdcPropToFieldTypePropMatcher` to `JsonSchemaFieldInstanceMatcher`, `SdcPropJsonSchemaType` to `JsonSchemaType` Active WDYT about renaming:

• PropSource -> InputSource
• PropShape -> InputShape

?
… because ComponentSourceInterface::getExplicitInput() + the term “explicit input” throughout docs/*.md

— Wim, in a DM with @larowlan on May 8, 2025

makes sense to me

— Lee's response

Proposed resolution

Do it.

This helps 🌱 [META] Production-ready ComponentSource plugins Active #stable too.

User interface changes

None.