Fixes weight of Throwing Weapons (#5237)

* Fixes #5094.
* Fixes the weight for Shuriken, Nimbus Shuriken, Flash Shuriken, Sharp Leaf Shuriken, Thorn Needle Shuriken, Icicle Kunai, Black Earth Kunai, High Wind Kunai, Heat Wave Kunai, Fell Poison Kunai, and Explosive Kunai.
Thanks to @flamefury and@Atemo!

db/re/item_db.txt

@@ -7525,16 +7525,16 @@
 //===================================================================
 // Shurikens & Kunais
 //===================================================================
-13250,Shuriken,Shuriken,10,4,,5,10,,,,0x02000000,63,2,32768,,1,,6,{},{},{}
-13251,Nimbus_Shuriken,Nimbus Shuriken,10,10,,5,30,,,,0x02000000,63,2,32768,,20,,6,{},{},{}
-13252,Flash_Shuriken,Flash Shuriken,10,20,,5,45,,,,0x02000000,63,2,32768,,40,,6,{},{},{}
-13253,Sharp_Leaf_Shuriken,Sharp Leaf Shuriken,10,40,,5,70,,,,0x02000000,63,2,32768,,60,,6,{},{},{}
-13254,Thorn_Needle_Shuriken,Thorn Needle Shuriken,10,100,,5,100,,,,0x02000000,63,2,32768,,80,,6,{},{},{}
-13255,Kunai_Of_Icicle,Icicle Kunai,10,10,,20,30,,,,0x02000000,63,2,32768,,1,,7,{ bonus bAtkEle,Ele_Water; },{},{}
-13256,Kunai_Of_Black_Soil,Black Earth Kunai,10,10,,20,30,,,,0x02000000,63,2,32768,,1,,7,{ bonus bAtkEle,Ele_Earth; },{},{}
-13257,Kunai_Of_Furious_Wind,High Wind Kunai,10,10,,20,30,,,,0x02000000,63,2,32768,,1,,7,{ bonus bAtkEle,Ele_Wind; },{},{}
-13258,Kunai_Of_Fierce_Flame,Heat Wave Kunai,10,10,,20,30,,,,0x02000000,63,2,32768,,1,,7,{ bonus bAtkEle,Ele_Fire; },{},{}
-13259,Kunai_Of_Deadly_Poison,Fell Poison Kunai,10,10,,20,30,,,,0x02000000,63,2,32768,,1,,7,{ bonus bAtkEle,Ele_Poison; bonus2 bAddEff,Eff_Poison,500; },{},{}
+13250,Shuriken,Shuriken,10,4,,1,10,,,,0x02000000,63,2,32768,,1,,6,{},{},{}
+13251,Nimbus_Shuriken,Nimbus Shuriken,10,10,,1,30,,,,0x02000000,63,2,32768,,20,,6,{},{},{}
+13252,Flash_Shuriken,Flash Shuriken,10,20,,1,45,,,,0x02000000,63,2,32768,,40,,6,{},{},{}
+13253,Sharp_Leaf_Shuriken,Sharp Leaf Shuriken,10,40,,1,70,,,,0x02000000,63,2,32768,,60,,6,{},{},{}
+13254,Thorn_Needle_Shuriken,Thorn Needle Shuriken,10,100,,1,100,,,,0x02000000,63,2,32768,,80,,6,{},{},{}
+13255,Kunai_Of_Icicle,Icicle Kunai,10,10,,1,30,,,,0x02000000,63,2,32768,,1,,7,{ bonus bAtkEle,Ele_Water; },{},{}
+13256,Kunai_Of_Black_Soil,Black Earth Kunai,10,10,,1,30,,,,0x02000000,63,2,32768,,1,,7,{ bonus bAtkEle,Ele_Earth; },{},{}
+13257,Kunai_Of_Furious_Wind,High Wind Kunai,10,10,,1,30,,,,0x02000000,63,2,32768,,1,,7,{ bonus bAtkEle,Ele_Wind; },{},{}
+13258,Kunai_Of_Fierce_Flame,Heat Wave Kunai,10,10,,1,30,,,,0x02000000,63,2,32768,,1,,7,{ bonus bAtkEle,Ele_Fire; },{},{}
+13259,Kunai_Of_Deadly_Poison,Fell Poison Kunai,10,10,,1,30,,,,0x02000000,63,2,32768,,1,,7,{ bonus bAtkEle,Ele_Poison; bonus2 bAddEff,Eff_Poison,500; },{},{}
 //===================================================================
 // Genetic Created Bombs And Throwing Items
 //===================================================================
@@ -7575,7 +7575,7 @@
 13291,Starfish,Starfish,10,0,,5,110,,,,0x02000000,63,2,32768,,50,,6,{ bonus bAtkEle,Ele_Neutral; bonus2 bAddEff,Eff_Stun,1000; },{},{}
 13292,Dried_Squid,Dried Squid,10,10,,20,50,,,,0x02000000,63,2,32768,,1,,7,{ bonus bAtkEle,Ele_Neutral; bonus2 bAddEff,Eff_Stun,1000; },{},{}
 13293,Flying_Fish,Flying Fish,10,10,,20,50,,,,0x02000000,63,2,32768,,1,,7,{ bonus bAtkEle,Ele_Neutral; bonus3 bAutoSpell,"NPC_CRITICALWOUND",1,3; },{},{}
-13294,Explosive_Kunai,Explosive Kunai,10,100,,30,50,,,,0x02000000,63,2,32768,,100,,7,{ bonus bAtkEle,Ele_Neutral; },{},{}
+13294,Explosive_Kunai,Explosive Kunai,10,100,,1,50,,,,0x02000000,63,2,32768,,100,,7,{ bonus bAtkEle,Ele_Neutral; },{},{}
 13295,Light_Shuriken,Light Shuriken,10,0,,5,5,,,,0xFFFFFFFF,63,2,32768,,,,0,{},{},{}
 //===================================================================
 // Ninja Fuuma Shurikens