Feature/rebrand to suwayomi (#500)

* Rename "Tachidesk-WebUI" to "Suwayomi-WebUI"

* Rename "Tachidesk-Server" to "Suwayomi-Server"

* Rename "Tachidesk" to "Suwayomi"

* Rename variables

src/components/context/NavbarContext.tsx

@@ -30,7 +30,7 @@ type ContextType = {
 export const NavBarContext = React.createContext<ContextType>({
     defaultBackTo: undefined,
     setDefaultBackTo: (): void => {},
-    title: 'Tachidesk',
+    title: 'Suwayomi',
     setTitle: (): void => {},
     action: <div />,
     setAction: (): void => {},