Vi-style editor and other editor improvements (#40)

* WIP VI wrapper for editor

* WIP: block cursor

* Create Edit trait, run CI on all feature options

* Add prints describing build steps to ci.sh

* Custom rendering for Vi editor

* Clippy fixes

* More clippy fixes

* Show clippy results in CI

* Fix for Redox

* Fix clippy lint

* Add vi feature to enable vi-style editor

* Add escape to libcosmic text box

.github/workflows/rust.yml

@@ -11,12 +11,12 @@ env:
 
 jobs:
   build:
-
     runs-on: ubuntu-latest
-
     steps:
     - uses: actions/checkout@v3
-    - name: Build
-      run: cargo build --verbose
-    - name: Run tests
-      run: cargo test --verbose
+    - uses: actions-rs/clippy-check@v1
+      with:
+        token: ${{ secrets.GITHUB_TOKEN }}
+        args: --all-features
+    - name: Run Rust CI
+      run: ./ci.sh