chore: tidy comments that repeat the code or no longer match it

- Comments that only restate a name (sgr, fg, mdLink, the repo provider's starred and current-repo notes) are gone.
- Stale ones match the code again: the repo package covers plain env files too, Launch runs argv, closeVersions no longer claims to move the cursor, and Check's fallback says why rather than naming a state no release had.
- The doc for versionString was attached to pseudo; the backtick in SourcesView's doc was a string-concatenation leftover; openFailed's doc was garbled.
- recentReleases sits next to latest, its user.
- .gitignore drops the Go template's boilerplate and patterns for files this project doesn't make.

internal/ui/app/app.go

@@ -1319,8 +1319,7 @@ func (m *Model) countVersions(o provider.Object) tea.Cmd {
 	})
 }
 
-// closeVersions returns the Secrets pane to the object list, with the
-// cursor on the object whose versions were shown.
+// closeVersions returns the Secrets pane to the object list.
 func (m *Model) closeVersions() {
 	m.versionsOf = nil
 }

internal/ui/app/sharefiles.go

@@ -304,7 +304,7 @@ func (m *Model) handleShareOpened(msg shareOpenedMsg) tea.Cmd {
 }
 
 // openFailed says why a share link couldn't be decrypted, in a popup
-// where its offer was: its first line (wrapped), or with whole all of it
+// where its offer was: its first line (wrapped), or, with whole, all of it
 // (Key Vault's refusals say what to check on later lines). From there,
 // the key's secret can be gone to: its version, which may be disabled.
 func (m *Model) openFailed(s share.Sealed, err error, whole bool) {

internal/ui/panes/highlight.go

@@ -9,7 +9,6 @@ import (
 	"github.com/charmbracelet/x/ansi"
 )
 
-// sgr matches SGR escape sequences.
 var sgr = regexp.MustCompile("\x1b\\[([0-9;:]*)m")
 
 // Highlight draws a cursor row: line, padded to width, on style's

internal/ui/styles/theme.go

@@ -131,7 +131,6 @@ type value struct {
 	bold, italic, underline, reverse, faint bool
 }
 
-// fg styles s with the value as foreground, bg as background.
 func (v value) fg(s lipgloss.Style) lipgloss.Style {
 	if v.color != nil {
 		s = s.Foreground(v.color)