feat: add loading indicator for desktop and mobile (#244)

* feat: add new CSS rule for hiding elements

- Add a new CSS rule for the class "hide" with a display property set to "none".

* feat: refactor image loading and navigation logic on desktop

- Add a line of code in `assets/ts/desktop/stage.ts` to reset the `src` of `elc` and add a class `hide` to it
- Add a line of code in `assets/ts/desktop/stage.ts` to call the `loader` function with `elc` as an argument
- Add a function `loader` in `assets/ts/desktop/stage.ts` to handle image loading and error events
- Modify the `initStageNav` function in `assets/ts/desktop/stageNav.ts` to watch the `isLoading` state and set custom cursor accordingly
- Modify the `initStageNav` function in `assets/ts/desktop/stageNav.ts` to handle close click events by calling the `handleClick` function and setting `isLoading` state to false
- Modify the `initStageNav` function in `assets/ts/desktop/stageNav.ts` to handle previous/next click events by calling the `handleClick` function only if `isLoading` is false
- Modify the `initStageNav` function in `assets/ts/desktop/stageNav.ts` to handle previous/next hover events by setting `loadedText` and updating custom cursor depending on `isLoading` state

* feat: refactor createGallery function and enhance loading functionality on mobile

- Add a loading text element to the gallery.scss file
- Add a loading indicator to the createGallery function in gallery.ts
- Modify the createGallery function in gallery.ts to hide the loading text element on image load
- Move the image element append logic to the parent container in the createGallery function in gallery.ts

* feat: update translations and add new loading translation in i18n files

* chore: remove css source map

* chore: modify build command to ignore css source map

* refactor: remove unnecessary style

* fix: fix desktop cursor text transition bug

i18n/de.toml

@@ -8,3 +8,5 @@ other = "schließen"
 other = "schwelle"
 [404]
 other = "seite nicht gefunden"
+[loading]
+other = "lade"

i18n/en.toml

@@ -8,3 +8,5 @@ other = "close"
 other = "threshold"
 [404]
 other = "page not found"
+[loading]
+other = "loading"

i18n/es.toml

@@ -8,3 +8,5 @@ other = "cerrar"
 other = "umbral"
 [404]
 other = "página no encontrada"
+[loading]
+other = "cargando"

i18n/fr.toml

@@ -8,3 +8,5 @@ other = "fermer"
 other = "seuil"
 [404]
 other = "page non trouvée"
+[loading]
+other = "chargement"

i18n/it.toml

@@ -8,3 +8,5 @@ other = "chiudi"
 other = "soglia"
 [404]
 other = "pagina non trovata"
+[loading]
+other = "caricamento"

i18n/ja.toml

@@ -8,3 +8,5 @@ other = "閉じる"
 other = "しきい値"
 [404]
 other = "ページが見つかりません"
+[loading]
+other = "読み込み中"

i18n/ko.toml

@@ -8,3 +8,5 @@ other = "닫기"
 other = "임계값"
 [404]
 other = "페이지를 찾을 수 없습니다"
+[loading]
+other = "로딩중"

i18n/zh-cn.toml

@@ -8,3 +8,5 @@ other = "关闭"
 other = "阈值"
 [404]
 other = "页面不存在"
+[loading]
+other = "加载中"

i18n/zh-hk.toml

@@ -8,3 +8,5 @@ other = "關閉"
 other = "閾值"
 [404]
 other = "找不到頁面"
+[loading]
+other = "載入中"

i18n/zh-mo.toml

@@ -8,3 +8,5 @@ other = "關閉"
 other = "閾值"
 [404]
 other = "找不到頁面"
+[loading]
+other = "載入中"

i18n/zh-sg.toml

@@ -8,3 +8,5 @@ other = "关闭"
 other = "阈值"
 [404]
 other = "页面不存在"
+[loading]
+other = "加载中"

i18n/zh-tw.toml

@@ -8,3 +8,5 @@ other = "關閉"
 other = "閾值"
 [404]
 other = "找不到頁面"
+[loading]
+other = "載入中"