restructure project following best practices

https://go.dev/doc/modules/layout
This also enables us to later import just the db interaction part
say to the gemini capsule backend go project.

internal/ui/entryList.go

@@ -0,0 +1,88 @@
+package ui
+
+import (
+	"fmt"
+
+	gemlog "git.travisshears.com/travisshears/gemlog-cli/gemlog"
+	tea "github.com/charmbracelet/bubbletea"
+)
+
+type EntryListPageModel struct {
+	entries      []gemlog.GemlogListEntry
+	actionToTake Action
+	cursor       int
+}
+
+type SelectActionToTake struct{ ActionToTake Action }
+
+func initialEntryListPageModel() EntryListPageModel {
+	return EntryListPageModel{
+		cursor:       0,
+		actionToTake: Read,
+	}
+}
+
+func (m EntryListPageModel) Update(msg tea.Msg, active bool, ctx *context) (EntryListPageModel, tea.Cmd) {
+	switch msg := msg.(type) {
+	case SelectActionToTake:
+		m.actionToTake = msg.ActionToTake
+	case GemLogsLoaded:
+		m.entries = msg.Logs
+		return m, nil
+	case tea.KeyMsg:
+		if !active {
+			return m, nil
+		}
+		switch msg.String() {
+		case "up", "k":
+			if m.cursor > 0 {
+				m.cursor--
+			}
+		case "down", "j":
+			if m.cursor < len(actions)-1 {
+				m.cursor++
+			}
+		case "left", "h":
+			cmd := func() tea.Msg {
+				return SwitchPages{Page: ActionList}
+			}
+			return m, cmd
+
+		case "enter", " ", "l":
+			id := m.entries[m.cursor].ID
+			rev := m.entries[m.cursor].Rev
+			switch m.actionToTake {
+			// TODO: handle edit
+			case Read:
+				loadCmd := LoadGemlogCMD(ctx.config, id)
+				navCmd := func() tea.Msg {
+					return SwitchPages{Page: Entry}
+				}
+				return m, tea.Sequence(loadCmd, navCmd)
+			case Delete:
+				delCmd := DeleteGemlogCMD(ctx.config, id, rev)
+				loadCmd := LoadGemlogsCMD(ctx.config)
+				navCmd := func() tea.Msg {
+					return SwitchPages{Page: ActionList}
+				}
+				return m, tea.Sequence(delCmd, loadCmd, navCmd)
+			}
+		}
+	}
+
+	return m, nil
+}
+
+func (m EntryListPageModel) View() string {
+	s := fmt.Sprintf("Which entry would you like to %s\n\n", m.actionToTake)
+	for i, entry := range m.entries {
+		cursor := " "
+		if m.cursor == i {
+			cursor = ">"
+		}
+		s += fmt.Sprintf("%s %s : %s\n", cursor, entry.Date, entry.Slug)
+	}
+
+	s += "\n\n Press h or left arrow to go back"
+	return s
+}