feature: add projects page (2 parts works)

src/shared/store/appState/index.ts

@@ -0,0 +1,25 @@
+import type { PayloadAction } from "@reduxjs/toolkit"
+
+import { createSlice } from "@reduxjs/toolkit"
+
+import { AppState } from "./types"
+
+const initialState: AppState = {
+	currentScreenName: "",
+}
+
+const appStateSlice = createSlice({
+	name: "appState",
+	initialState,
+	reducers: {
+		setCurrentScreenName(state, action: PayloadAction<string>) {
+			state.currentScreenName = action.payload
+		},
+		resetAppState(state) {
+			state.currentScreenName = initialState.currentScreenName
+		},
+	},
+})
+
+export const { resetAppState, setCurrentScreenName } = appStateSlice.actions
+export const appStateReducer = appStateSlice.reducer