chore(psalm): Add type hints to make psalm happy

Signed-off-by: Julius Härtl <jus@bitgrid.net>

lib/Activity/Setting.php

@@ -41,7 +41,7 @@ class Setting implements \OCP\Activity\ISetting {
 	 * @return string Lowercase a-z and underscore only identifier
 	 * @since 11.0.0
 	 */
-	public function getIdentifier() {
+	public function getIdentifier(): string {
 		return 'deck';
 	}
 
@@ -49,7 +49,7 @@ class Setting implements \OCP\Activity\ISetting {
 	 * @return string A translated string
 	 * @since 11.0.0
 	 */
-	public function getName() {
+	public function getName(): string {
 		return $this->l->t('Changes in the <strong>Deck app</strong>');
 	}
 
@@ -59,7 +59,7 @@ class Setting implements \OCP\Activity\ISetting {
 	 * priority values. It is required to return a value between 0 and 100.
 	 * @since 11.0.0
 	 */
-	public function getPriority() {
+	public function getPriority(): int {
 		return 90;
 	}
 
@@ -67,7 +67,7 @@ class Setting implements \OCP\Activity\ISetting {
 	 * @return bool True when the option can be changed for the stream
 	 * @since 11.0.0
 	 */
-	public function canChangeStream() {
+	public function canChangeStream(): bool {
 		return true;
 	}
 
@@ -75,7 +75,7 @@ class Setting implements \OCP\Activity\ISetting {
 	 * @return bool True when the option can be changed for the stream
 	 * @since 11.0.0
 	 */
-	public function isDefaultEnabledStream() {
+	public function isDefaultEnabledStream(): bool {
 		return true;
 	}
 
@@ -83,7 +83,7 @@ class Setting implements \OCP\Activity\ISetting {
 	 * @return bool True when the option can be changed for the mail
 	 * @since 11.0.0
 	 */
-	public function canChangeMail() {
+	public function canChangeMail(): bool {
 		return true;
 	}
 
@@ -91,7 +91,7 @@ class Setting implements \OCP\Activity\ISetting {
 	 * @return bool True when the option can be changed for the stream
 	 * @since 11.0.0
 	 */
-	public function isDefaultEnabledMail() {
+	public function isDefaultEnabledMail(): bool {
 		return false;
 	}
 }