refactor: one copy of the UI's repeated helpers (#77)

- Text inputs come from newTextInput; the link and folder prompts share one width.
- One starred-first sort for sources, vaults and secrets; accountOf where the account was cut from the label by hand.
- One helper each for the reveal and clipboard countdowns' tick and seconds, the "Open with" choices, the vaults-loaded count, and Go to's and the panes' tabs.
- The details pane builds its label prefix, indent, note and source once; list rows mark matches with MarkMatches.
- The release page opens through openPage, so it now says it opened, as other pages do.
- The cache's account filter is built once per load or save, not per key.

Reviewed-on: #77
Co-authored-by: Karl-Einar Bergstrøm <karl-einarb@outlook.com>

internal/ui/app/sharefiles.go

@@ -10,7 +10,6 @@ import (
 	"slices"
 	"strings"
 
-	"charm.land/bubbles/v2/textinput"
 	tea "charm.land/bubbletea/v2"
 	"github.com/charmbracelet/x/ansi"
 
@@ -338,9 +337,7 @@ func (m *Model) openFailed(s share.Sealed, err error, whole bool) {
 // askShareDir asks where to save files from a repo that isn't here. It
 // stays until they're saved, saying why when they can't be.
 func (m *Model) askShareDir(msg shareOpenedMsg) tea.Cmd {
-	in := textinput.New()
-	in.Prompt = "folder: "
-	in.SetWidth(max(20, min(m.w-12, 64)))
+	in := newTextInput("folder: ", m.pathInputWidth())
 	dir := m.placeDir
 	if dir == "" {
 		dir, _ = os.Getwd()