refactor: cargo manifests (incl. dependency cleanup) (#811)

* refactor: cargo manifests

* refactor: remove `once_cell`

* refactor: deduplicate dependencies

Author: magistau

.clippy.toml

@@ -0,0 +1,35 @@
+allowed-duplicate-crates = [
+  "bitflags",
+  "dashmap", # upgraded to 6.* by dependabot, not sure if it should be downgraded back
+
+  "getrandom",
+  "wasi", # 0.14 needed by [email protected], 0.11 by [email protected] and [email protected]
+
+  "hashbrown", # TODO: can be resolved by updating dashmap to 7.0.0-rc0
+  "objc2",
+  "objc2-foundation",
+
+  "proc-macro-utils", # TODO: can be resolved by updating leptos crates to 0.7.0
+  "serde_qs", # TODO: can be resolved by updating leptos crates to 0.7.0
+
+  "rustix",
+  "linux-raw-sys", # needed by [email protected]
+
+  "thiserror",
+  "thiserror-impl",
+  "ttf-parser", # both versions are brought by [email protected]
+  "windows-core",
+  "windows-implement",
+  "windows-interface",
+  "windows-result",
+  "windows-sys",
+  "windows-targets",
+  "windows_aarch64_gnullvm",
+  "windows_aarch64_msvc",
+  "windows_i686_gnu",
+  "windows_i686_msvc",
+  "windows_x86_64_gnu",
+  "windows_x86_64_gnullvm",
+  "windows_x86_64_msvc",
+  "zip", # 0.5.13 needed by simple_excel_writer, 4.2.0 by calamine
+]