(Magic) Small magic localization issues

[Rimaka94]

Issue Description:

• Backdraft localization needs change from it's to its in wc_game_concepts_magic_spells_l_english.yml
• Burnout loc timeout needs it's to its in wc_game_concepts_magic_spells_l_english.yml
• Frostbolt effects change from worstening to worsening in wc_game_concepts_magic_spells_l_english.yml
• Pyroblast description change from it's to its in wc_game_concepts_magic_spells_l_english.yml
• Polymorph effects change from Whist to Whilst in wc_game_concepts_magic_spells_l_english.yml
• Divine Shield effects remove an extra space in description in wc_game_concepts_magic_spells_l_english.yml

FROM
wc_backdraft_tt:0 "You will begin monitoring [this_recipient.GetName] for it's spells."

wc_burnout_remove_time:0 "Burnout has been removed because it's duration is finished."

wc_spell_frostbolt_effects:0 "Travel speed and cast rate reduced by 10%. Chance of inflicting or worstening the Frostbite wound, (100% chance if target is in an Army affected by Frost Nova)"

game_concept_wc_spell_pyroblast_desc:0 "Singe an entire army, including the commander at it's helm."

wc_spell_polymorph_effects:0 "Transform a [character|E] into a harmless animal. Whist in this state their [prowess|E] is set to #N 1#! and they are considered [wc_incapable|E]."

wc_spell_divine_shield_effects:0 "Eliminate the chance of the character being killed in battle, and block the effects of the next harmful non-Light spell."

TO
wc_backdraft_tt:0 "You will begin monitoring [this_recipient.GetName] for its spells."

wc_burnout_remove_time:0 "Burnout has been removed because its duration is finished."

wc_spell_frostbolt_effects:0 "Travel speed and cast rate reduced by 10%. Chance of inflicting or worsening the Frostbite wound, (100% chance if target is in an Army affected by Frost Nova)"

game_concept_wc_spell_pyroblast_desc:0 "Singe an entire army, including the commander at its helm."

wc_spell_polymorph_effects:0 "Transform a [character|E] into a harmless animal. Whilst in this state their [prowess|E] is set to #N 1#! and they are considered [wc_incapable|E]."

wc_spell_divine_shield_effects:0 "Eliminate the chance of the character being killed in battle, and block the effects of the next harmful non-Light spell."

How To Reproduce:

Screenshots:

Game Files: