chore: fix some comments and typos (#3535)

- **PR Description**
fix some comments and typos

docs/Stacked_Branches.md

@@ -13,6 +13,6 @@ includes interactive rebases, so for example amending a commit in the first
 branch of the stack will "just work" in the sense that it keeps the other
 branches properly stacked onto it.
 
-Lazygit visualizes the invidual branch heads in the stack by marking them with a
+Lazygit visualizes the individual branch heads in the stack by marking them with a
 cyan asterisk (or a cyan branch symbol if you are using [nerd
 fonts](Config.md#display-nerd-fonts-icons)).

pkg/commands/git_commands/working_tree.go

@@ -363,7 +363,7 @@ func (self *WorkingTreeCommands) ResetAndClean() error {
 	return self.RemoveUntrackedFiles()
 }
 
-// ResetHardHead runs `git reset --hard`
+// ResetHard runs `git reset --hard`
 func (self *WorkingTreeCommands) ResetHard(ref string) error {
 	cmdArgs := NewGitCmd("reset").Arg("--hard", ref).
 		ToArgv()

pkg/gui/controllers/undo_controller.go

@@ -16,7 +16,7 @@ import (
 // we then do the reverse of what that reflog describes.
 // When we do this, we create a new reflog entry, and tag it as either an undo or redo
 // Then, next time we want to undo, we'll use those entries to know which user-initiated
-// actions we can skip. E.g. if I do do three things, A, B, and C, and hit undo twice,
+// actions we can skip. E.g. if I do three things, A, B, and C, and hit undo twice,
 // the reflog will read UUCBA, and when I read the first two undos, I know to skip the following
 // two user actions, meaning we end up undoing reflog entry C. Redoing works in a similar way.
 

pkg/gui/filetree/build_tree_test.go

@@ -127,7 +127,7 @@ func TestBuildTreeFromFiles(t *testing.T) {
 			expected: &Node[models.File]{
 				Path: "",
 				// it is a little strange that we're not bubbling up our merge conflict
-				// here but we are technically still in in tree mode and that's the rule
+				// here but we are technically still in tree mode and that's the rule
 				Children: []*Node[models.File]{
 					{
 						File: &models.File{Name: "a"},