Add Hebrew locale with RTL support and finalize translations

[lidorshimoni]

UI verification screenshots

Hebrew (localized + RTL) — proof of fix

Summary by Sourcery

Add RTL-aware localization support for Hebrew and apply translations to additional UI labels.

New Features:

• Introduce RTL language handling that prefixes translated strings with an RTL mark for supported locales.
• Add a Hebrew locale file providing Hebrew translations for UI text.

Enhancements:

• Use localized strings for several previously hard-coded UI labels such as face enhancer, transparency, sharpness, and mouth mask.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Adds RTL-aware translation handling, wires several remaining UI labels into the i18n system, and introduces a Hebrew locale JSON file for full RTL localization support.

Sequence diagram for RTL-aware translation lookup

sequenceDiagram
    participant UI as UILayer
    participant LM as LanguageManager

    UI->>LM: _(key="Face Enhancer", default=None)
    activate LM
    LM->>LM: text = translations.get(key, default or key)
    LM->>LM: normalized_lang = current_language.lower().split("-", 1)[0]
    alt normalized_lang in RTL_LANGUAGES
        alt text startswith RTL_MARK
            LM-->>UI: text
        else text does not startwith RTL_MARK
            LM->>LM: text = RTL_MARK + text
            LM-->>UI: text
        end
    else normalized_lang not in RTL_LANGUAGES
        LM-->>UI: text
    end
    deactivate LM

    UI->>UI: Create CTkLabel(text=translated_text)

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File-Level Changes

Change	Details	Files
Add RTL support to translation lookup and normalize language codes in the language manager.	Define a set of RTL language codes and an RTL mark constant for prefixing text. Update the translation lookup method to normalize the current language code to a base language and detect RTL locales. Ensure returned translations for RTL languages are prefixed with the RTL mark if not already present, preserving existing marks when present. Adjust the translation method docstring capitalization and behavior description.	modules/gettext.py
Localize remaining hard-coded UI labels for enhancer, transparency, sharpness, and mouth mask controls.	Replace hard-coded English label texts with translated strings obtained via the translation function, while preserving trailing colons in the rendered UI. Ensure new labels integrate with the existing i18n plumbing by wrapping display text in the translation helper.	modules/ui.py
Introduce Hebrew locale resource file.	Add a new Hebrew locale JSON file to provide translations for UI strings, including the newly localized labels and RTL-mark-prefixed text where appropriate.	locales/he.json

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[sourcery-ai]

Hey - I've found 1 issue, and left some high level feedback:

• In LanguageManager._, the non-RTL path currently falls through without a return, so you should add a final return text after the RTL-specific block to preserve the original behavior for LTR languages.
• When checking for the existing RTL mark with text.startswith(RTL_MARK), consider trimming leading whitespace or using a more robust check, otherwise translations with leading spaces will be wrapped with a duplicate RTL mark.

Prompt for AI Agents

Please address the comments from this code review:

## Overall Comments
- In `LanguageManager._`, the non-RTL path currently falls through without a `return`, so you should add a final `return text` after the RTL-specific block to preserve the original behavior for LTR languages.
- When checking for the existing RTL mark with `text.startswith(RTL_MARK)`, consider trimming leading whitespace or using a more robust check, otherwise translations with leading spaces will be wrapped with a duplicate RTL mark.

## Individual Comments

### Comment 1
<location path="modules/ui.py" line_range="436-439" />
<code_context>
         save_switch_states()

-    enhancer_label = ctk.CTkLabel(root, text="Face Enhancer:")
+    enhancer_label = ctk.CTkLabel(root, text=f'{_("Face Enhancer")}:')
     enhancer_label.place(relx=0.1, rely=0.62, relwidth=0.2, relheight=0.03)

</code_context>
<issue_to_address>
**suggestion:** Include punctuation in the translatable string to allow locale-specific placement.

Currently the colon is concatenated outside the translation (e.g. `_("Face Enhancer") + ":"`), which prevents locale-specific punctuation or placement (especially for RTL languages). Instead, pass the full label string to translation, e.g. `_("Face Enhancer:")`, so translators can control punctuation as needed.

Suggested implementation:

```python
    enhancer_label = ctk.CTkLabel(root, text=_("Face Enhancer:"))

```

```python
    transparency_label = ctk.CTkLabel(root, text=_("Transparency:"))

```
</issue_to_address>

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[Copilot]

Pull request overview

Adds Hebrew localization support, including RTL text handling, and updates several UI labels to use translated strings.

Changes:

• Added locales/he.json with Hebrew translations for existing UI strings.
• Implemented RTL support in LanguageManager._() by prefixing RTL-mark for RTL languages.
• Updated several CustomTkinter label strings to be translatable (Face Enhancer / Transparency / Sharpness / Mouth Mask).

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 7 comments.

File	Description
modules/ui.py	Converts a few hard-coded label texts into translated equivalents.
modules/gettext.py	Adds RTL language detection + RTL mark insertion in the translation helper.
locales/he.json	Introduces Hebrew translations for many UI strings.

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[lidorshimoni]

lets merge :)