Add a few more OpenRPC methods for rstudioapi shims #52

Job	Run time
Check Python types	4m 15s
Test Positron IPyKernel (ubuntu-latest, 3.8)	4m 7s
Lint	2m 20s
Test Positron IPyKernel (macos-latest, 3.9)	6m 39s
Python Tests (ubuntu-latest, 3.8, pytest<8.1.1)	2m 23s
Test Positron IPyKernel (windows-latest, 3.10)	4m 59s
Python Tests (macos-latest, 3.9, pytest<8.1.1)	2m 53s
Test Positron IPyKernel (ubuntu-latest, 3.11)	4m 8s
Test TypeScript (ubuntu-latest, 3.x, ts-unit)	4m 36s
Python Tests (windows-latest, 3.10, pytest<8.1.1)	4m 21s
Test TypeScript (ubuntu-latest, 3.x, functional)	3m 26s
Test Positron IPyKernel (ubuntu-latest, 3.12)	2m 57s
Python Tests (ubuntu-latest, 3.11, pytest<8.1.1)	2m 20s
Test TypeScript (macos-latest, 3.x, ts-unit)	7m 28s
Python Tests (ubuntu-latest, 3.12, pytest<8.1.1)	2m 35s
Test TypeScript (macos-latest, 3.x, venv)	6m 39s
Test TypeScript (macos-latest, 3.x, single-workspace)	6m 14s
Test TypeScript (macos-latest, 3.x, debugger)	4m 43s
Test TypeScript (macos-latest, 3.x, functional)	6m 27s
Test TypeScript (macos-latest, 3.x, smoke)	11m 26s
Test TypeScript (windows-latest, 3.x, ts-unit)	9m 34s
Test TypeScript (windows-latest, 3.x, functional)	8m 29s
	1h 52m 59s

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