Add mastery skill icons and export module

Added PNG icons for Combat, Farming, Fishing, Foraging, and Mining masteries. Created an index.tsx file to export these icons for use throughout the application.

Author: JorchCortez

src/Media/Masteries/Combat_Skill_Icon.png

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+export { default as CombatMastery } from '@media/Masteries/Combat_Skill_Icon.png'
+export { default as FarmingMastery } from '@media/Masteries/Farming_Skill_Icon.png'
+export { default as ForagingMastery } from '@media/Masteries/Foraging_Skill_Icon.png'
+export { default as FishingMastery } from '@media/Masteries/Fishing_Skill_Icon.png'
+export { default as MiningMastery } from '@media/Masteries/Mining_Skill_Icon.png'