chore: cleanup all test files (#293)

## Changes made
- Removed all unused imports, and made sure type imports were labeled
correctly
- Updated all comparisons to be more strict
- Simplified loops to remove unneeded closure functions
- Removed all explicit `any` types
- Updated how strings were defined to follow general TypeScript best
practices

## Notes
- We definitely want some kind of linting setup for this repo. I'm going
to bring this up when Blueberry has its next team meeting next week

vscode-desktop/main.test.ts

@@ -22,7 +22,7 @@ describe("vscode-desktop", async () => {
     );
 
     const coder_app = state.resources.find(
-      (res) => res.type == "coder_app" && res.name == "vscode",
+      (res) => res.type === "coder_app" && res.name === "vscode",
     );
 
     expect(coder_app).not.toBeNull();
@@ -79,7 +79,7 @@ describe("vscode-desktop", async () => {
     });
 
     const coder_app = state.resources.find(
-      (res) => res.type == "coder_app" && res.name == "vscode",
+      (res) => res.type === "coder_app" && res.name === "vscode",
     );
 
     expect(coder_app).not.toBeNull();