Weapon-related redraw improvements and bug fixes

[ergoxiv]

Changelog:

• Added a checkbox toggle feature that links the dye channels of the main hand and off-hand. It is enabled by default.
  • Explanation: This is done as the game only checks the off-hand dye channels on some items (e.g. monk fists). Since most users are unlikely to want to switch the dyes independently, the checkbox is toggled on by default.
• Resolved an issue, which caused actors to become and stay invisible after a redraw when swapping between one-handed and two-handed weapon types that differ from what was equipped prior to entering GPose.
• Fixed an issue where certain weapons (e.g., monk fists) failed to update their model assets when switched under specific conditions.
• Resolved a bug where updating equipment prevented weapon models (e.g. monk fists) from re-rendering during actor redraws.
• Weapon visibilitty state is now preserved across actor redraws.
  • Explanation: Previously, weapon visibility would reset to whatever sheathe state the actor had before entering GPose.
• Refactored the weapon visibility toggle feature to use the weapon's object flags instead of modifying transform scale.
  • Explanation: This replaces the old hacky solution, which mimicked visibility toggling by updating the weapon's model scale to 0 and 1.
• Fixed an issue with model ID handling for weapons which prevented some off-hand items from being recognized as weapons.
• Resolved an issue with off-hand weapons not importing correctly on some NPC appearances.
• Fixed a localization issue with the model set, base, and variant field tooltips in the item view component.
• Removed previous workaround that set the main hand to "Emperor's New Fists" on weapon change to model id 0 (i.e., no item).