Auto merge of #17067 - est31:master, r=jdm

Bring back clipboard support

Brings back clipboard support.

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- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix #17065
- [x] These changes fix #12805

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- [ ] There are tests for these changes OR
- [ ] These changes do not require tests because _____
- [x] Testing these chances would require a full integration-style test suite, which servo currently lacks.

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components/script/textinput.rs

@@ -613,17 +613,17 @@ impl<T: ClipboardProvider> TextInput<T> {
                 self.adjust_horizontal_to_line_end(Direction::Forward, maybe_select);
                 KeyReaction::RedrawSelection
             },
-            (Some('a'), _) if is_control_key(mods) => {
+            (_, Key::A) if is_control_key(mods) => {
                 self.select_all();
                 KeyReaction::RedrawSelection
             },
-            (Some('c'), _) if is_control_key(mods) => {
+            (_, Key::C) if is_control_key(mods) => {
                 if let Some(text) = self.get_selection_text() {
                     self.clipboard_provider.set_clipboard_contents(text);
                 }
                 KeyReaction::DispatchInput
             },
-            (Some('v'), _) if is_control_key(mods) => {
+            (_, Key::V) if is_control_key(mods) => {
                 let contents = self.clipboard_provider.clipboard_contents();
                 self.insert_string(contents);
                 KeyReaction::DispatchInput