We essentially invoke the tree-sitter API at `build()` time to determine
the starting offsets for each pattern of the full pattern string.

The change of field signature caused this. We want to retain this method
for backwards-compatibility purposes.

May see revisions in terms of structure

May see revisions in terms of structure

The first term is treated equivalently to the second by the tree-sitter
library, but I feel like the new name makes more sense to the programmer
as it reflects its true purpose

The type of said field will soon be changed, so this will quickly become
an invalid reference. But apart from that, we don't use it anywhere, so
it's not a loss at all.

I fell that we can use some sort of `Capture` -> `Node` map to replace
the now-confusingly-named `QueryCapture` class. However, since one
`Capture` instance will be able to map to multiple nodes, we will need
to introduce some kind of multi-value variant of `Map` to store captures

Documentation is also updated to reflect this change

The superclass will probably be renamed

…/github.com/seart-group/java-tree-sitter into enhancement/query