Localize tooltips for Japanese

[vienai8d]

Description

1. Add translation for Japanese (Documentation change)

0a0c1c4
Translate tooltip texts into Japanese.

2. Localize tooltips for Japanese (Improvement)

Appearance of the tooltips is not good as below.

So, I localize the following buttons.

• ToggleModeButton e6a927e
• StarButton 5cf4a0e
• FullscreenButton caa6c8d
• TrashButton b05ba64

Below is new appearance of the tooltips.

3. Fix FullscreenButton (Bug fix)

d0f5ec8

A tooltip text of FullscreenButton is mixed English and Japanese after chaging language from Japanese to English as below.

This is because hotkey text of the FullscreenButton is decided regardless of current language setting.
To resolve this problem, hotkey is defined in onClick function.

Issue fixed

Type of changes

• 🔘 Bug fix (Change that fixed an issue)
• ⚪ Breaking change (Change that can cause existing functionality to change)
• 🔘 Improvement (Change that improves the code. Maybe performance or development improvement)
• ⚪ Feature (Change that adds new functionality)
• 🔘 Documentation change (Change that modifies documentation. Maybe typo fixes)

Checklist:

• 🔘 My code follows the project code style
• ⚪ I have written test for my code and it has been tested
• 🔘 All existing tests have been passed
• 🔘 I have attached a screenshot/video to visualize my change if possible

[ZeroX-DG]

LGTM

[ZeroX-DG]

I still need @Rokt33r to review the translation before we can merge this.

[Rokt33r]

LGTM