fix conflict with checklist plugin styling

src/main.ts

@@ -594,7 +594,7 @@ class OmnivoreSettingTab extends PluginSettingTab {
     help.innerHTML = `For more information, please visit the <a href="https://github.com/omnivore-app/obsidian-omnivore/blob/master/README.md">plugin's GitHub page</a> or email us at <a href="mailto:[email protected]">[email protected]</a>.`;
 
     // script to make collapsible sections
-    const coll = document.getElementsByClassName("collapsible");
+    const coll = document.getElementsByClassName("omnivore-collapsible");
     let i;
 
     for (i = 0; i < coll.length; i++) {

styles.css

@@ -1,21 +1,21 @@
 /* Style the button that is used to open and close the collapsible content */
-.collapsible {
+.omnivore-collapsible {
 	cursor: pointer;
 	border-bottom: outset;
 }
 
 /* Style the collapsible content. Note: hidden by default */
-.content {
+.omnivore-content {
 	max-height: 0;
 	overflow: hidden;
 	transition: max-height 0.2s ease-out;
 }
 
-.collapsible:after {
+.omnivore-collapsible:after {
 	content: "\02795"; /* Unicode character for "plus" sign (+) */
 	float: right;
 }
 
-.active:after {
+.omnivore-active:after {
 	content: "\2796"; /* Unicode character for "minus" sign (-) */
 }