refactor: Significantly refactor how conditions work internally (#1886)

- Much improved API cleanliness and testability to allow further
extensibility in future
 - Simplified code in `live` view

This technically contains a small change in how overrides work in the
`live` view. Since that change is _closer_ to the documentation, and
since this is likely to be rarely used, this is not considered a
breaking change. Previously, overrides for a given live camera would
always render _as if_ that camera was selected, vs was actually
selected. Now, overrides will only apply in the live view when the
camera is _actually_ selected. If this is an issue for you in practice,
lets discuss.

tests/card-controller/microphone-manager.test.ts

@@ -302,7 +302,7 @@ describe('MicrophoneManager', () => {
     const manager = new MicrophoneManager(api);
 
     manager.initialize();
-    expect(api.getConditionsManager().setState).toBeCalledWith({
+    expect(api.getConditionStateManager().setState).toBeCalledWith({
       microphone: { connected: false, muted: true, forbidden: false, stream: undefined },
     });
   });
@@ -313,7 +313,7 @@ describe('MicrophoneManager', () => {
     const stream = createMockStream();
     vi.mocked(navigatorMock.mediaDevices.getUserMedia).mockResolvedValue(stream);
 
-    expect(api.getConditionsManager().setState).not.toBeCalled();
+    expect(api.getConditionStateManager().setState).not.toBeCalled();
 
     await manager.connect();
 
@@ -325,7 +325,7 @@ describe('MicrophoneManager', () => {
     };
 
     expect(manager.getState()).toEqual(expectedState);
-    expect(api.getConditionsManager().setState).toHaveBeenLastCalledWith(
+    expect(api.getConditionStateManager().setState).toHaveBeenLastCalledWith(
       expect.objectContaining({
         microphone: expectedState,
       }),
@@ -340,7 +340,7 @@ describe('MicrophoneManager', () => {
       muted: false,
     };
     expect(manager.getState()).toEqual(expectedState);
-    expect(api.getConditionsManager().setState).toHaveBeenLastCalledWith(
+    expect(api.getConditionStateManager().setState).toHaveBeenLastCalledWith(
       expect.objectContaining({
         microphone: expectedState,
       }),
@@ -355,7 +355,7 @@ describe('MicrophoneManager', () => {
       muted: true,
     };
     expect(manager.getState()).toEqual(expectedState);
-    expect(api.getConditionsManager().setState).toHaveBeenLastCalledWith(
+    expect(api.getConditionStateManager().setState).toHaveBeenLastCalledWith(
       expect.objectContaining({
         microphone: expectedState,
       }),
@@ -370,7 +370,7 @@ describe('MicrophoneManager', () => {
       muted: true,
     };
     expect(manager.getState()).toEqual(expectedState);
-    expect(api.getConditionsManager().setState).toHaveBeenLastCalledWith(
+    expect(api.getConditionStateManager().setState).toHaveBeenLastCalledWith(
       expect.objectContaining({
         microphone: expectedState,
       }),