Fix Ctrl + F not working

Fix Crtl + F not working by only having the shortcut assigned to a single searchfield. 
- Ctrl + F is now for the roomlist search
- The user search in the room drawer is now ctrl + shift + f
- for the emoji picker and qucik switcher these have the shortcut removed and focus is managed by the popup.

BUG: 462524

src/qml/Component/Emoji/EmojiPicker.qml

@@ -27,6 +27,10 @@ ColumnLayout {
 
     signal chosen(string emoji)
 
+    onActiveFocusChanged: if (activeFocus) {
+        searchField.forceActiveFocus()
+    }
+
     spacing: 0
 
     QQC2.ScrollView {
@@ -78,6 +82,12 @@ ColumnLayout {
         id: searchField
         Layout.margins: Kirigami.Units.smallSpacing
         Layout.fillWidth: true
+
+        /**
+         * The focus is manged by the parent and we don't want to use the standard
+         * shortcut as it could block other SearchFields from using it.
+         */
+        focusSequence: ""
     }
 
     EmojiGrid {

src/qml/Component/QuickSwitcher.qml

@@ -40,6 +40,11 @@ QQC2.Popup {
             // we used to be able to expect that the text field wouldn't attempt to
             // perform a mini-DDOS attack using signals.
             autoAccept: false
+            /**
+             * The focus is manged by the popup and we don't want to use the standard
+             * shortcut as it could block other SearchFields from using it.
+             */
+            focusSequence: ""
 
             Layout.preferredWidth: Kirigami.Units.gridUnit * 21 // 3 * 7 = 21, roughly 7 avatars on screen
             Keys.onLeftPressed: cView.decrementCurrentIndex()