feat(filter):merge GSM and GM into IM

frontend/src/services/FilterService.js

@@ -110,14 +110,22 @@ class FilterService {
         allowedSemesters === null ? true : allowedSemesters.includes(sem)
       )
       .map(([, forSemester]) => forSemester)
-      .flatMap((forSemester) => Object.entries(forSemester))
+      .flatMap(forSemester => Object.entries(forSemester))
       .flatMap(([major, minors]) =>
-        minors.map((minor) => `${major} — ${minor}`)
+        minors.map(minor => {
+          if (major === "GSM" || major === "GM") {
+            major = "IM";
+          }
+          return `${major} — ${minor}`;
+        })
       );
 
-    const extraMinors = this.getMajorInUniv(univObj).map(
-      (major) => `${major} — Toutes filières confondues`
-    );
+    const extraMinors = this.getMajorInUniv(univObj).map(major => {
+      if (major === "GSM" || major === "GM") {
+        major = "IM";
+      }
+      return `${major} — Toutes filières confondues`;
+    });
     return [...new Set(realMinors), ...extraMinors];
   }