Respect injections when using the syntax tree's root node

[the-mikedavis]

Previously we used the root syntax tree for bracket matching. We can use the new functionality in Syntax for finding the correct syntax tree for a given byte range though so we use the correct syntax tree within injections. This improves bracket matching behavior within HTML injections like script or style tags for example.

Fixes #9423

[the-mikedavis]

There are a few other places where we can replace Syntax::tree with functions that take injections into account. I'll add some commits for fixing :tree-sitter-highlight-name and helix_core::movement::move_parent_node_end to this PR too since they're small. In the long run we should treat Syntax::tree as deprecated and remove it once we respect injection layers in the indent system