Automatic merge from submit-queue CRI: general grammar/spelling/consistency cleanup No semantic changes, but a lot of shuffling of docstrings to make things more consistent. In particular, standardise on the zeroth-article (i.e. prefer `// Version` to `// The version`) and ending all docstrings with periods. (This knowingly conflicts with #36446 and intentionally omits changing the Annotations field - I'll rebase this or that respectively as necessary.)