refactor!: design overhaul (#1)

* refactor!: use atom functions

* docs: reformat api reference

* docs: showcase atom functions

* docs: remove unused import

* refactor: finalize updates

* chore: misc edits

src/effect.luau

@@ -0,0 +1,22 @@
+local capture = require(script.Parent.capture)
+local store = require(script.Parent.store)
+
+local function effect(source: () -> nil): () -> ()
+	local atoms = capture(source)
+
+	local function listener()
+		source()
+	end
+
+	for atom in atoms do
+		store.listeners[atom][listener] = true
+	end
+
+	return function()
+		for atom in atoms do
+			store.listeners[atom][listener] = nil
+		end
+	end
+end
+
+return effect