We give Shortcut Key to the lower case to reduce confusion. (#32)

app/cli.go

@@ -3,6 +3,7 @@ package main
 import (
 	"fmt"
 	"os"
+	"unicode"
 
 	"github.com/asdine/storm/v3"
 	"github.com/gdamore/tcell/v2"
@@ -84,7 +85,7 @@ func setKeyboardShortcuts() *tview.Application {
 		}
 
 		// Global shortcuts
-		switch event.Rune() {
+		switch unicode.ToLower(event.Rune()) {
 		case 'p':
 			app.SetFocus(projectPane)
 			return nil

app/project_detail.go

@@ -1,6 +1,8 @@
 package main
 
 import (
+	"unicode"
+
 	"github.com/gdamore/tcell/v2"
 	"github.com/rivo/tview"
 
@@ -44,7 +46,7 @@ func (pd *ProjectDetailPane) isShowing() bool {
 }
 
 func (pd *ProjectDetailPane) handleShortcuts(event *tcell.EventKey) *tcell.EventKey {
-	switch event.Rune() {
+	switch unicode.ToLower(event.Rune()) {
 	case 'd':
 		projectPane.RemoveActivateProject()
 		return nil

app/projects.go

@@ -3,6 +3,7 @@ package main
 import (
 	"fmt"
 	"strings"
+	"unicode"
 
 	"github.com/gdamore/tcell/v2"
 	"github.com/rivo/tview"
@@ -111,7 +112,7 @@ func (pane *ProjectPane) addSection(name string) {
 }
 
 func (pane *ProjectPane) handleShortcuts(event *tcell.EventKey) *tcell.EventKey {
-	switch event.Rune() {
+	switch unicode.ToLower(event.Rune()) {
 	case 'j':
 		pane.list.SetCurrentItem(pane.list.GetCurrentItem() + 1)
 		return nil

app/task_detail.go

@@ -7,6 +7,7 @@ import (
 	"os"
 	"os/exec"
 	"time"
+	"unicode"
 
 	"github.com/atotto/clipboard"
 	"github.com/gdamore/tcell/v2"
@@ -297,7 +298,7 @@ func (td *TaskDetailPane) handleShortcuts(event *tcell.EventKey) *tcell.EventKey
 		td.taskDetailView.ScrollUp(1)
 		return nil
 	case tcell.KeyRune:
-		switch event.Rune() {
+		switch unicode.ToLower(event.Rune()) {
 		case 'e':
 			td.activateEditor()
 			return nil

app/tasks.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"sort"
 	"time"
+	"unicode"
 
 	"github.com/asdine/storm/v3"
 	"github.com/gdamore/tcell/v2"
@@ -102,7 +103,7 @@ func (pane *TaskPane) addTaskToList(i int) *tview.List {
 }
 
 func (pane *TaskPane) handleShortcuts(event *tcell.EventKey) *tcell.EventKey {
-	switch event.Rune() {
+	switch unicode.ToLower(event.Rune()) {
 	case 'j':
 		pane.list.SetCurrentItem(pane.list.GetCurrentItem() + 1)
 		return nil