Add custom chain of thought feature and max thought tag depth setting

src/lib/UI/ProomptItem.svelte

@@ -25,7 +25,7 @@
     <span>{language.type}
     </span>
     <SelectInput bind:value={proompt.type} on:change={() => {
-        if(proompt.type === 'plain' || proompt.type === 'jailbreak'){
+        if(proompt.type === 'plain' || proompt.type === 'jailbreak' || proompt.type === 'cot'){
             proompt.text = ""
             proompt.role = "system"
         }
@@ -42,7 +42,9 @@
         <OptionInput value="authornote">{language.formating.authorNote}</OptionInput>
         <OptionInput value="lorebook">{language.formating.lorebook}</OptionInput>
         <OptionInput value="memory">{language.formating.memory}</OptionInput>
-
+        {#if $DataBase.proomptSettings.customChainOfThought}
+            <OptionInput value="cot">{language.cot}</OptionInput>
+        {/if}
     </SelectInput>
 
     {#if proompt.type === 'plain' || proompt.type === 'jailbreak'}