fix: improved readability for loops

packages/nocodb/src/modules/jobs/jobs/at-import/at-import.processor.ts

@@ -314,7 +314,7 @@ export class AtImportProcessor {
     const nc_getSanitizedColumnName = (table, name) => {
       let col_name = nc_sanitizeName(name);
 
-      // truncate to 60 chars if character if exceeds above 50
+      // truncate to 50 chars if character if exceeds above 50
       col_name = col_name?.slice(0, 50);
 
       // for knex, replace . with _
@@ -327,27 +327,33 @@ export class AtImportProcessor {
       const duplicateColumn = table.columns.find(
         (x) => x.column_name?.toLowerCase() === col_name?.toLowerCase(),
       );
+
       if (duplicateTitle) {
-        let iterator = 1;
+        let tempAlias = col_alias;
+        let suffix = 1;
         while (
           table.columns.find(
-            (x) =>
-              x.title?.toLowerCase() ===
-              `${col_alias}_${++iterator}`?.toLowerCase(),
+            (x) => x.title?.toLowerCase() === tempAlias?.toLowerCase(),
           )
-        ) {}
-        col_alias = `${col_alias}_${iterator}`;
+        ) {
+          tempAlias = col_alias;
+          tempAlias += `_${suffix++}`;
+        }
+        col_alias = tempAlias;
       }
+
       if (duplicateColumn) {
-        let iterator = 1;
+        let tempName = col_name;
+        let suffix = 1;
         while (
           table.columns.find(
-            (x) =>
-              x.column_name?.toLowerCase() ===
-              `${col_name}_${++iterator}`?.toLowerCase(),
+            (x) => x.column_name?.toLowerCase() === tempName?.toLowerCase(),
           )
-        ) {}
-        col_name = `${col_name}_${iterator}`;
+        ) {
+          tempName = col_name;
+          tempName += `_${suffix++}`;
+        }
+        col_name = tempName;
       }
 
       return {