Begin refactoring gui

This begins a big refactor of moving more code out of the Gui struct into contexts, controllers, and helpers. We also move some code into structs in the
gui package purely for the sake of better encapsulation

pkg/gui/controllers/suggestions_controller.go

@@ -0,0 +1,43 @@
+package controllers
+
+import (
+	"github.com/jesseduffield/lazygit/pkg/gui/context"
+	"github.com/jesseduffield/lazygit/pkg/gui/types"
+)
+
+type SuggestionsController struct {
+	baseController
+	*controllerCommon
+}
+
+var _ types.IController = &SuggestionsController{}
+
+func NewSuggestionsController(
+	common *controllerCommon,
+) *SuggestionsController {
+	return &SuggestionsController{
+		baseController:   baseController{},
+		controllerCommon: common,
+	}
+}
+
+func (self *SuggestionsController) GetKeybindings(opts types.KeybindingsOpts) []*types.Binding {
+	bindings := []*types.Binding{}
+
+	return bindings
+}
+
+func (self *SuggestionsController) GetOnFocusLost() func(types.OnFocusLostOpts) error {
+	return func(types.OnFocusLostOpts) error {
+		deactivateConfirmationPrompt
+		return nil
+	}
+}
+
+func (self *SuggestionsController) Context() types.Context {
+	return self.context()
+}
+
+func (self *SuggestionsController) context() *context.SuggestionsContext {
+	return self.contexts.Suggestions
+}