feat(items): clarify column names

frontend/src/routes/favorites/+page.svelte

@@ -330,6 +330,7 @@
 	onfavorite={unfavorite}
 	showOwner
 	showPath
+	dateLabel={t('files.col_added', 'Added')}
 	selectable
 	{contextActions}
 	menuPrepare={async (item) => {

frontend/src/routes/files/[...path]/+page.svelte

@@ -1594,6 +1594,8 @@
 		showOwner
 		showType
 		showDate
+		dateLabel={t('files.col_modified', 'Modified')}
+		showPath={false}
 		showDotfileToggle
 		enableSystemDrop
 		onsystemdrop={onDrop}

frontend/src/routes/recent/+page.svelte

@@ -374,6 +374,7 @@
 	onopen={open}
 	showOwner
 	showPath
+	dateLabel={t('files.col_opened', 'Opened')}
 	showDotfileToggle
 	selectable
 	{contextActions}

frontend/src/routes/shared-with-me/+page.svelte

@@ -228,6 +228,8 @@
 	emptyText={t('shared_with_me.empty', 'Nothing has been shared with you yet.')}
 	hasMore={!!cursor}
 	showOwner={true}
+	ownerLabel={t('share.col_shared_by', 'Shared by')}
+	dateLabel={t('share.col_shared', 'Shared')}
 	{groupBys}
 	bind:groupBy
 	bind:reversed