Move remaining code to app module

There's still some stuff that could potentially go elsewhere but I think it's enough for now.

src/app/plasma-runner-neochat.desktop

@@ -0,0 +1,96 @@
+# SPDX-License-Identifier: CC0-1.0
+# SPDX-FileCopyrightText: 2022 Nicolas Fella <nicolas.fella@gmx.de>
+[Desktop Entry]
+Name=NeoChat
+Name[ar]=نيوتشات
+Name[ast]=NeoChat
+Name[az]=NeoChat
+Name[ca]=NeoChat
+Name[ca@valencia]=NeoChat
+Name[cs]=NeoChat
+Name[de]=NeoChat
+Name[el]=NeoChat
+Name[en_GB]=NeoChat
+Name[eo]=NeoChat
+Name[es]=NeoChat
+Name[eu]=NeoChat
+Name[fi]=NeoChat
+Name[fr]=NeoChat
+Name[gl]=NeoChat
+Name[he]=NeoChat
+Name[hi]=नियोचैट
+Name[hu]=NeoChat
+Name[ia]=Neochat
+Name[id]=NeoChat
+Name[ie]=NeoChat
+Name[it]=NeoChat
+Name[ka]=NeoChat
+Name[ko]=NeoChat
+Name[lt]=NeoChat
+Name[lv]=NeoChat
+Name[nl]=NeoChat
+Name[nn]=NeoChat
+Name[pa]=ਨਿਓ-ਚੈਟ
+Name[pl]=NeoChat
+Name[pt]=NeoChat
+Name[pt_BR]=NeoChat
+Name[ro]=NeoChat
+Name[ru]=NeoChat
+Name[sa]=नवचैट्
+Name[sk]=NeoChat
+Name[sl]=NeoChat
+Name[sv]=NeoChat
+Name[ta]=நியோச்சாட்
+Name[tr]=NeoChat
+Name[uk]=NeoChat
+Name[x-test]=xxNeoChatxx
+Name[zh_CN]=NeoChat
+Name[zh_TW]=NeoChat
+Comment=Find rooms in NeoChat
+Comment[ar]=اعثر على غرف في نيوتشات
+Comment[az]=NeoChat-da otaqları tapın
+Comment[ca]=Cerca sales en el NeoChat
+Comment[ca@valencia]=Busca sales en NeoChat
+Comment[de]=Räume in NeoChat finden
+Comment[el]=Εύρεση αιθουσών στο NeoChat
+Comment[en_GB]=Find rooms in NeoChat
+Comment[eo]=Trovi ĉambrojn en NeoChat
+Comment[es]=Buscar salas en NeoChat
+Comment[eu]=Bilatu gelak NeoChat-en
+Comment[fi]=Etsi huoneita NeoChatissä
+Comment[fr]=Trouver des salons dans NeoChat
+Comment[gl]=Atopa salas en NeoChat.
+Comment[he]=איתור חדרים ב־NeoChat
+Comment[hi]=नियोचैट में कमरे खोजें
+Comment[hu]=Szobák keresése a NeoChatben
+Comment[ia]=Trova salas in NeoChat
+Comment[id]=Cari ruangan di NeoChat
+Comment[ie]=Trovar chambres in NeoChat
+Comment[it]=Trova stanze in NeoChat
+Comment[ka]=იპოვე ოთახები NeoChat-ში
+Comment[ko]=NeoChat에서 대화방 찾기
+Comment[lt]=Rasti kambarius NeoChat
+Comment[lv]=Atrast „NeoChat“ istabas
+Comment[nl]=Rooms zoeken in NeoChat
+Comment[nn]=Finn rom i NeoChat
+Comment[pl]=Znajdź pokoje w NeoChat
+Comment[pt]=Procurar salas no NeoChat
+Comment[pt_BR]=Encontrar salas no NeoChat
+Comment[ru]=Поиск комнат NeoChat
+Comment[sa]=NeoChat इत्यत्र कक्ष्याः अन्वेषणं कुर्वन्तु
+Comment[sl]=Najdi sobe v NeoChatu
+Comment[sv]=Sök efter rum i NeoChat
+Comment[ta]=நியோச்சாட்டில் அரங்குகளை கண்டுபிடிக்கும்
+Comment[tr]=NeoChat’te odalar bulun
+Comment[uk]=Пошук кімнат у NeoChat
+Comment[x-test]=xxFind rooms in NeoChatxx
+Comment[zh_CN]=在 NeoChat 查找聊天室
+Comment[zh_TW]=在 NeoChat 尋找聊天室
+X-KDE-ServiceTypes=Plasma/Runner
+Type=Service
+Icon=org.kde.neochat
+X-Plasma-API=DBus
+X-Plasma-DBusRunner-Service=org.kde.neochat
+X-Plasma-DBusRunner-Path=/RoomRunner
+X-Plasma-Request-Actions-Once=true
+X-Plasma-Runner-Min-Letter-Count=3