docs: fix grammar and typos in comments and documentation (#5254)

* docs: fix grammar and typos in comments and documentation

* docs: use British English style for e.g. and i.e. (no trailing comma)
Changed from American English style (e.g.,) to British English style (e.g.)
for consistency with the rest of the codebase."

examples/07-fullstack/through_reqwest.rs

@@ -1,4 +1,4 @@
-//! This example demonstrates that dioxus server functions can be be called directly as a Rust
+//! This example demonstrates that dioxus server functions can be called directly as a Rust
 //! function or via an HTTP request using reqwest.
 //!
 //! Dioxus server functions generated a REST endpoint that can be called using any HTTP client.